When a cellular telephone sends a text message, the cell carrier encodes the text message and transmits the message to the receiving cellular telephone. The encoded text message is the data of the transmission.
In addition to transmitting the data, the cell carrier company also stores metadata. The metadata of the text message includes the time the message was sent, the phone number of the sender, and the phone number of the receiver.
For which of the following goals would it be more useful to computationally analyze the metadata instead of the data?
I. Estimate the number of texts that will be sent next month
II. Determine the most frequently used emoji in text messages
III. Determine if two phones have been in contact in the last week
a) I only
b) II only
c) I and III
d) I, II, and III
Answers
The answer is c) I and III.
Metadata analysis is useful for estimating future text volumes and tracking communication patterns.
Which goals benefit from analyzing metadata?Computational analysis of metadata, rather than the data itself, is more useful for estimating the number of texts that will be sent next month (goal I) and determining if two phones have been in contact in the last week (goal III). Metadata provides valuable information such as the time the message was sent, phone numbers of the sender and receiver, which can be used to analyze patterns, trends, and connections between devices.
For goal I, by analyzing metadata from previous months, trends can be identified to estimate the number of texts that will likely be sent next month. This information can help the cell carrier allocate resources and plan accordingly.
For goal III, analyzing metadata allows the identification of communication patterns between devices. By examining the timestamps and phone numbers associated with the messages, it is possible to determine if two phones have been in contact within a specified time frame, which can be useful for various purposes such as contact tracing or investigating connections between individuals.
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Related Questions
Role of energy consumption in formulating energy policies.
Answers
The Role of energy consumption in formulating energy policies are:
It is the regulatory framework on which global attractiveness is built.It helps widen access to electricity.It helps improve clean cooking fuels.It helps in elimination of deadly air pollution.What is the importance of energy policy?Energy policy is known to be a vital factor in economic development as it is known to be the total regulatory framework that helps to know the boast in global attractiveness and others.
Note that he Role of energy consumption in formulating energy policies are:
It is the regulatory framework on which global attractiveness is built.It helps widen access to electricity.It helps improve clean cooking fuels.It helps in elimination of deadly air pollution.Learn more about Energy policy from
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A2. Watch the ASML video posted on Blackboard, then answer the following questions. Use these properties: The chuck is 18 kg and the chuck handling tool is 13 kg. The pin connecting the hoist adapter to the chuck handling tool is made of 304 stainless steel (E-200 GPa, ơ,-290 MPa. T,-150 MPa). You may assume that all holes through which the pin passes are slightly oversized. Hoist a) Draw a FBD of the pin. Be sure to represent the eight of the chuck and chuck handling tool as well b) Draw shear force and bending moment diagrams c) Calculate the minimum pin diameter that meets as the reaction with the hoist 5 mm the design criteria of a safety of factor of 3 for bendi ng stress Chuck + chuck handling tool
Answers
The minimum pin diameter that meets as the reaction with the hoist 5 mm the design criteria of a safety of factor of 3 for bending stress Chuck + chuck handling tool is d = 4.5100 mm.
What is bending stress?To check the amount of steel needed for each unit area, bending stress determination is required when designing an economical section. Only bending causes bending stress to exist. Every section of a beam experiences shear forces and bending moments when it is subjected to external loads. Bending stress can also be determined from the bending moment.
Just like force and stress, bending stress and moment are analogous. Tensile loads cause concrete beams to bend when they are put under them. We should go into more detail about bending stress.
When an object is subjected to external load at any cross-section, the normal stress it can withstand is known as the "bending stress."
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we want to build an xor gate, but unfortunately, we only have a bunch of nor gates available. how to construct an xor gate? draw your digital circuit. (do not search online to waste such a chance of practice.)
Answers
To construct an XOR gate using NOR gates, we can combine multiple NOR gates with additional logic gates.
How can we build an XOR gate using NOR and NOT gates?To build an XOR gate using NOR gates, we can follow these steps:
1. Start by connecting two NOR gates in series. Let's call the output of the first NOR gate as A and the output of the second NOR gate as B.
2. Connect the output A of the first NOR gate to one input of a third NOR gate.
3. Connect the output B of the second NOR gate to the other input of the third NOR gate.
4. Connect the output of the third NOR gate to one input of a fourth NOR gate.
5. Connect the output of the fourth NOR gate to the input of a NOT gate.
6. Finally, connect the output of the NOT gate to the remaining input of the fourth NOR gate.
The output of the fourth NOR gate will be the XOR output. This circuit works by generating the complement of one of the inputs and then using NOR gates to perform the logical OR operation.
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If sin 0-cos 0 = -1/3, what is the value of sin 20?
Answers
Sin 20 degrees has a value of 0.3420201. Sin (20° /180°), often known as sin (/9) or sin 20 degrees, is expressed in radians (0.349065. . .). With the use of examples, we will go over how to calculate sin 20 degrees in this post.
What does Sin 20 Degrees Mean?Sin 20 degrees has a numeric value of 0.342020143. Sin 20 degrees can also be written as the angle (20 degrees equivalent )'s in radians (0.34906 . . .).Using the degree to radian conversion, we can determine that 20 degrees is equal to 20° (pi/180°) and that rad = /9 or 0.3490.Sin 20° is equal to sin(0.3490) = 0.3420201.Explanation of Sin 20 Degrees: The angle 20° is between 0° and 90° for sin 20 degrees (First Quadrant). Sin 20° value = 0.3420201 because sine function is positive in the first quadrant.Sine is a periodic function, therefore we may write sin 20° as sin(20° + n 360°), where n Z. Sine 20° also equals sin 380°, sin 740°, and so on.Note: Because sine is an odd function, sin(-20°) equals -sin(20°).To Learn more about Sin 20 refer to :
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Use the following to answer questions 4 - 5:
A database table consists of the following columns: employee's name, SS#, job-title, hiring-date, years-in-job, base-salary. A bonus calculation program, a personnel promotion application program, and a payroll application program all use this table. To implement a policy change in personnel promotion, the following column is added to the table: highest-college-degree. This new column is not used by the payroll program or by the bonus calculation program.
The following application program will be modified to accommodate the change to the database table:
A) The bonus calculation program
B) The payroll application program
C) The personnel promotion application program
D) All of the above
The ability to add the new column without requiring changes to all of the application programs strongly relates to the following feature of modern database systems:
A) Nonprocedural programming
B) Transaction processing
C) Data sharing
D) Data independence
Entity Relationship Diagrams are input to the following phase of Database Development:
A) Logical Database Design
B) Conceptual Data Modeling
C) Physical Database Design
D) Distributed Database Design
The multi-step process used when creating a new system is referred to as ____.
A) The Systems Development Life Cycle
B) Data mining
C) E-R Modeling
D) SQL
Answers
#2. D
#3. A
#4. A
implement a dfa in prolog that will check if a given number is divisible by 6 and accept it if it is divisible.
Answers
A dfa in prolog that will check if a given number is divisible by 6 and accept it if it is divisible will be:
div6(0,6).
div6(1,6).
div6(2,6).
div6(3,6).
div6(4,6).
div6(5,6).
div6(6,6).
What is DFA?
A deterministic finite automaton (DFA), also known as a deterministic finite acceptor (DFA), deterministic finite-state machine (DFSM), as well as deterministic finite-state automaton (DFSA), is a finite-state machine that accepts or rejects a given string of symbols by running through a state sequence that is uniquely determined by the string. The uniqueness of the calculation run is referred to be deterministic. Warren McCulloch as well as Walter Pitts were among the first researchers to suggest a concept comparable to finite automata in 1943, in quest of the simplest models to encapsulate finite-state machines.
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The moisture content of a saturated clay is 160 %. The specific gravity of the soil solids Gs is 2.40. What are the wet and dry densities of the saturated clay? hints: what is the degree of saturation of a saturated soil?)
Answers
Answer: 162.4
Sorry if you get it wrong :(
Explanation:
The logarithmic mean temperature difference ∆Tln is an exact representation of the average temperature difference between the fluid and the surface for the entire tube.
Answers
The logarithmic mean temperature difference is a useful parameter in heat transfer analysis as it accounts for the non-uniformity of temperature distribution and provides an exact representation of the average temperature difference for the entire tube.
The logarithmic mean temperature difference (∆Tln) is a widely used parameter in heat transfer analysis. It represents the average temperature difference between the fluids and the surface of the entire tube. It is an exact representation of the temperature difference because it takes into account the non-uniformity of temperature distribution over the length of the tube. This non-uniformity is caused by the flow of fluids and the heat transfer rate, which vary with distance along the tube. The logarithmic mean temperature difference allows for a more accurate calculation of the heat transfer rate compared to a simple average temperature difference.
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Technician A says that the valve guides must be repaired before machining the valve seats. Technician B says that valve seats may be removed and replaced on some cylinder heads. Who is correct
Answers
Both Technician A and Technician B can be correct depending on the specific situation and the design of the cylinder head.
In general, when performing valve seat work, it is common practice to repair or replace the valve guides before machining the valve seats. Valve guides provide guidance and support to the valves, and if they are worn or damaged, it can affect the valve's performance and seating.
Technician A is correct in emphasizing the importance of repairing the valve guides before machining the valve seats. This ensures that the valves are properly guided and aligned during the machining process, resulting in accurate and precise valve seat work.
However, Technician B is also correct in stating that on certain cylinder heads, the valve seats can be removed and replaced. Some cylinder heads are designed with removable valve seats, which allows for easier replacement when the seats are worn or damaged. This process involves removing the old valve seats and installing new ones, ensuring a proper sealing surface for the valves.
Ultimately, the correct approach depends on the specific cylinder head design and the condition of the valve guides and seats. It is essential to assess the condition of the valve guides and seats before determining the appropriate course of action, whether it involves repairing the valve guides or replacing the valve seats.
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where are the solutions to chemical,biomedical, and engieering thermodynamics?
Answers
Thermodynamics problems may be solved to use a variety of online resources, including such course websites, newsgroups, and internet learning materials.
What sort of internet resource would that be?Online content is referred to as a source. It might be a television website like NBC or CNN or an online magazine, newspaper, or magazine. Online sources include blogs, forums, websites, and peer-reviewed publications. Online sources are sometimes referred to as electronic, web, and Internet sources.
What purposes do internet materials serve?You may use online learning resources to support a variety of learning goals and learning styles. That may enable you to obtain what you require. You may focus on developing yourself with the aid of online schooling. Housewives and students have a fantastic chance to advance their careers by using online educational resources.
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What is the value of $x after the following after the execution of the following Perl code?$x = 0;$y = 1;$z = 2;($x ? $y : $z) = 3;A:3B:2C:0D:1
Answers
The value of $x after the execution of the given Perl code will be 0.
In the code, three variables $x, $y, and $z are initialized to 0, 1, and 2, respectively. The next line of code is a ternary operator that assigns the value 3 to either $y or $z, depending on the value of $x. However, since $x is initialized to 0, which evaluates to false in Perl, the ternary operator will always evaluate to the second operand, which is $z. Therefore, the value of $z will be updated to 3.The ternary operator will not affect the value of $x since it is only used to determine which variable between $y and $z gets assigned a new value. As a result, the value of $x will remain 0, and the answer is option (C) 0.
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1. Declare a variable named num with an
initial value of 0. Create a while loop that
will print "Keep going" as long as the value
of num is less than 5. Use window.alert()
for displaying the output.
2. Create a function named showProd that
returns the product of n1 and n2.
3. Using the new keyword, create an array
named info with three (3) values: your first
name, your nickname, and your last name.
Answers
The code to
Declare a variable and increment with a while loop until the variable is not less than 5Create a function that returns the product of two numbersUses the new keyword to create an arraywere written in JavaScript and are found in the attached images
Declaring a variableThe first code declares a variable called num and gives it an initial value of 0. It then enters a while loop that lauches a message box (using window.alert) to print the message "Keep going" as long as num remains less than 5.
If nothing is done within the loop to increment num towards the value 5, the loop will go on endlessly notifying the user to "Keep going".
So, an increment of 1 was added to the loop body to increment the variable num. This makes sure the loop terminates.
Creating a function that returns the product of two numbersHere, a function was created that receives two arguments (n1 and n2), then returns the product (n1 * n2)
Declaring an ArrayThis last code segment creates an array using the new keyword. The new keyword is generally used in constructing objects.
In this case the object constructed is an array having three strings;
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a 20 ft x 20 ft x 10 ft office space requires 6 air changes per hour. what is the required ventilation rate in cfm?
Answers
The required ventilation rate is 400 cfm.
How to calculate the required ventilation rate?H = height office = 10 feet
W = width office = 20 feet
L = length office = 20 feet
ACPH = air change per hour = 6
Basically the formula to calculate the required ventilation rate is by multiply the ACPH with the space volume.
We know the office space have block shape with volume formula is H*W*L. So the required ventilation rate is,
Required ventilation rate = 6 * (10 * 20 * 20)
= 24,000 cubic feet per hour
Since the question want the result in cfm or cubic feet per minute, so we divide the result by 60 to convert that to cfm. So,
CFM = 24,000 / 60
= 400 cfm
Thus, the required ventilation rate in cfm is 400.
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What is the aim of reviewing a research paper?
Answers
Answer:
Purpose of review papers
They carefully identify and synthesize relevant literature to evaluate a specific research question, substantive domain, theoretical approach, or methodology and thereby provide readers with a state-of-the-art understanding of the research topic.
TRUCK is to TRANSPORT as ...
Answers
TRUCK is to TRANSPORT as, GOAL is to REACH.
What is transportation?Transportation can be defined as a process that involves the movement of humans, products, and other things from one geographical area to another, especially through various means (forms) such as the following:
Water (Ship)Land (Truck)Air (Airplane)Rail (Train)What is a goal?A goal can be defined as an outcome statement and strategic objectives that defines what an individual or a group of people (team) hopes to successfully achieve (accomplish) or reach in the future i.e over a specific period of time.
In conclusion, we can reasonably infer and logically deduce that TRUCK is to TRANSPORT as, GOAL is to REACH.
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Complete Question:
TRUCK is to TRANSPORT as ...
BASKET is to CART
CHORE is to CLEAN
WHEEL is to AXEL
BED is to REST
GOAL is to REACH
question 8 fill in the blank: data mapping is the process of fields from one data source to another.
O Lingking
O Extracting
O Matching
O Merging
Answers
Data mapping is the process of matching fields from one data source to another. Hence option c is correct.
What is data?Data is defined as the information that has been altered to be more easily moved around or processed. Organizations can set baselines, benchmarks, and targets using good data in order to keep moving forward.
The process of matching fields from one database to another is known as data mapping. This is the initial step in making data transfer, integration, and other data management chores easier.
Thus, data mapping is the process of matching fields from one data source to another. Hence option c is correct.
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A turbine of a fossil fuel burning installation delivers 1,500 hp of mechanical energy to a generator. The generator then converts 80.0% of the mechanical energy into electrical energy. If the terminal potential difference of the generator is 1790 V, what current does it deliver (in A)
Answers
Answer:
The generator delivers current of 500.11 A
Explanation:
Given the data in the question;
mechanical energy delivered to the generator = 1500 hp
efficiency η = 80.0 %
terminal potential difference of the generator = 1790 V
we know that;
1 hp = 746 W
so
the mechanical energy delivered to the generator will be
Generator Input = ( 1500 × 746 )W = 1119000 W
So the generator output will be;
Generator Output = Generator Input × η
we substitute
Generator Output = 1119000 W × 80.0 %
Generator Output = 1119000 W × 0.8
Generator Output = 895200 W
So the Current will be;
\(I\) = Generator Output / terminal potential difference of the generator
we substitute
\(I\) = 895200 W / 1790 V
\(I\) = 500.11 A
Therefore, The generator delivers current of 500.11 A
Create a gear train or belt system with a mechanical advantage of 300. The gear sizes: 84, 60, 36, (teeth) Sprocket size: 30, 24, 18, 12, 6 (teeth)
Answers
In order to arrive at a gear ratio of 300, [5 x 6 x 10] must be used by selecting (60/12) * (36/6) * (60/6). See explanation of gear ratio below.
What is gear ratio?The gear ratio ratio is the ratio of input teeth to output teeth (for example, if there are 10 teeth on the input and 20 teeth on the output, the gear ratio is 10/20 or 0.5: 1)
The output speed to input speed ratio is defined as the speed ratio (e.g., with a gear ratio of 2, the output speed will be 2 that of the input speed).
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The reading on the 0 to 25 mm micrometer provided is
A. 15.20
B. 15.70
C. 15.45
D. 0.1520
Answers
Based on the image attached, the reading of micrometer is= 15.20.
What do the numbers on a micrometer represent?You will see a line of numbers running down the barrel of your micrometer, starting with the barrel scale. On the barrel scale, each number corresponds to 0.100. Looking at the barrel, 1 equals 0.100, 2 equals 0.200, 3 equals 300, and so on. The distance between each tick mark and the larger numbers on the barrel is 0.025, or 25 thousandths.
Note that micrometer is one that is also referred to as a micrometer screw gauge—is a tool with a calibrated screw that is frequently used for precise measurement of components in mechanical engineering, and others.
Looking at the image, you will see the stop ends at 15 and and 20 so adding them together will be option A. 15.20.
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what is the horsepower rating on the bmw m3 in north america?A) 473 horsepowerB) 463 horsepowerC) 450 horsepowerD) 470 horsepower
Answers
A) 473 horsepower rating on the bmw m3 in north america.
BMW's S58 twin-turbo 3.0-liter inline-six, which in standard form generates 473 horsepower and 406 lb-ft of torque, powers the M3. It is connected to either a six-speed manual transmission or an eight-speed automatic transmission that only drives the rear wheels. According to BMW, the M3 will reach 60 mph in 4.1 seconds and reach a top speed of 180 mph.
Engine output increases to 503 horsepower and 479 lb-ft of torque in the M3 Competition. BMW's xDrive AWD technology is now provided, whilst the Competition is only offered with an automatic transmission. Considering the car's capabilities, fuel economy isn't too poor; regardless of the transmission selected, it receives an EPA rating of 16/23 mpg city/highway.
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A 150-lbm astronaut took his bathroom scale (a
spring scale) and a beam scale (compares masses) to the
moon where the local gravity is g ! 5.48 ft/s2
. Determine
how much he will weigh (a) on the spring scale and (b) on
the beam scale.
Answers
Given the following data:
Mass of astronaut = 150-lbm.
Acceleration due to gravity on Moon = 5.48 ft/s².
What is weight?Weight can be defined as the force acting on an object or a physical body due to the effect of gravity. Also, the weight of a physical object (body) is typically measured in Newton or ounces.
How to calculate the weight of this astronaut?Mathematically, the weight force on a physical body can be calculated by using this formula:
W = mg
Where:
W represents the weight.m represents the mass.g represents the acceleration due to gravity.Substituting the given parameters into the formula, we have;
Weight = 150 × 1/32.2 × 5.48
Weight = 25.5 lbf.
For the weight on beam scale.A beam scale is a measuring instrument that is designed and developed to compare the masses of a physical body and as such, it's not affected by the variations in acceleration due to gravity. Therefore, the beam scale would read 150-lbf as it read on earth.
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what are the properties of advanced materials?
Answers
Sandpaper.
Rubble.
Pyramid.
Wrinkled.
Marbled.
What type of sensor is a crankshaft position sensor?
Answers
you’re welcome ! please mark me brainliest and leave a thank you.
Wastewater flows into a _________ once it is released into a floor drain.
A) HoseB) Covered containerC) Sump pitD) Bucket
Answers
Answer:
a
Explanation:
Wastewater flows into a sump pit once it is released into a floor drain.
For better understanding, lets understand what wastewater means
Wastewater are water that are not needed or have been use and therefore they are disposed. Waster water often contains waste product of man such as food waste,feaces etc.Sump is simply known as a basin into which groundwater is channeled to. A sump pit is commonly known as a temporary pit that is fixed to trap and filter water for carrying or pumping into a design discharge area.From the above, we can therefore say that the answer that Wastewater flows into a sump pit once it is released into a floor drain is correct
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Give me source code of Simple openGL project. ( without 3D or Animation) simple just.
Answers
Answer:
Use GitHub or stackoverflow for this answer
Explanation:
It helps with programming a lot
Consider atmospheric air at 25 C and a velocity of 25 m/s flowing over both surfaces of a 1-m-long flat plate that is maintained at 125 C. Determine the rate of heat transfer per unit width from the plate for values of the critical Reynolds number corresponding to 105 , 5 105 , and 106 .
Answers
Answer:
Explanation:
Temperature of atmospheric air To = 25°C = 298 K
Free stream velocity of air Vo = 25 m/s
Length and width of plate = 1m
Temperature of plate Tp = 125°C = 398 K
We know for air, Prandtl number Pr = 1
And for air, thermal conductivity K = 24.1×10?³ W/mK
Here, charectorestic dimension D = 1m
Given value of Reynolds number Re = 105
For laminar boundary layer flow over flat plate
= 3.402
Therefore, hx = 0.08199 W/m²K
So, heat transfer rate q = hx×A×(Tp – To)
= 0.08199×1×(398 – 298)
A closed vessel of volume 80 litres contains 0.5 N of gas at a pressure of 150 kN/m2. If the gas is compressed isothermally to half its volume, determine the resulting pressure.
Answers
Answer:
The resulting pressure of the gas when its volume decreases is 300 kN/m².
Explanation:
Given;
initial volume of the gas, V₁ = 80 L
number of moles of the gas, n = 0.5 moles
initial pressure of the gas, P₁ = 150 kN/m² = 150 kPa
Determine the constant temperature of the gas using ideal gas equation;
PV = nRT
where;
R is ideal gas constant = 8.315 L.kPa/K.mol
T is the constant temperature
\(T = \frac{P_1V_1}{nR} \\\\T = \frac{150.kPa \ \times \ 80 .L}{0.5 .mol \ \times \ 8.315(L.kPa/mol.K)} \\\\T = 2,886.35 \ K\)
When the gas is compressed to half of its volume;
new volume of the gas, V₂ = ¹/₂ V₁
= ¹/₂ x 80L = 40 L
The new pressure, P₂ is calculated as;
\(P_2V_2 = nRT\\\\P_2 = \frac{nRT}{V_2} \\\\P_2 = \frac{0.5 \times 8.315\times 2886.35}{40} \\\\P_2 = 300 \ kPa = 300 \ kN/m^2\)
Therefore, the resulting pressure of the gas when its volume decreases is 300 kN/m².
Tech A says that a mechanical pressure regulator exhausts excess fluid back to the transmission pan. Tech B says that if the transmission pan is removed, the magnet must be replaced. Who is correct?
Answers
Answer:
A
Explanation:
A conventional steering system has all of the following except
Answers
Tie rod
Describe the first case where the power of synthesis was used to solve design problems.
Answers
The first case where the power of synthesis was applied was in Chile when they had to put 100 families in houses around 40m².
It should be noted that the power of architecture is the fact that it can synthesize a complex entry to a problem.
Chilean architect Alejandro used this in building more than several houses for the poorest communities in Chile. His rigorous and innovative design approach used a social framework that laid a precedent within the profession.
During this period in Chile, a normal middle-class home was about 80m² but he built his in 40m² and it was a good home that managed the resources that were available.
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