Input: Gravitational Potential Energy is affected by position. Like the leaves on trees, anything that is raised up has the potential to fall. It has potential energy. You can see examples of people with gravitational potential energy in 1.5 Figure below. Gravitational potential energy depends on two things. It depends on its weight, because a large falling rock can do more damage than a leaf falling from a tree. It also depends on its height above the ground. Like the skateboarder, the higher the ramp, the faster he will be going when he reaches the bottom. Like all energy, gravitational potential energy has the ability to do work. In this case, weight has the potential to deliver a force. More important for us is that it has the ability to cause change. What kind of change you may ask? Gravitational potential energy has the ability to cause motion.
"What sort of change can gravitational potential energy cause?" is "Friction"?

OPTIONS:
- no
- yes
Output: no

Input: Joey got a German Shepherd for his birthday present. He had never had any pets before, but was always excited to see the other dogs and cats in his neighborhood. Since his birthday was in June, he spent a lot of time playing outside with his new puppy, which he named Max. Max and Joey would often run through fields in a game of chase. They also liked to go through the small forest behind the house, making a game of hide and seek. They never went near the lake because Joey was afraid of water. One day, Max hid a little too well and Joey couldn't find him. Joey spent the afternoon looking for his German Shepherd where they often played, like the field and forest. Joey was a shy boy who often read by himself, and Max was his best friend. After dinner, he went to look for Max one last time before he had to take a bath and go to bed. He heard some barking on the next street, so he ran to see if it was his puppy. Sure enough, he saw Max playing with a poodle. The dogs were having so much fun. Joey brought Max home, happy that he had his puppy back. Max seemed to be happy to have his human by his side as well as a new doggy friend. All summer long, Joey took Max to the poodle's house so they could play without having to worry about losing his present.

Does the response "Outside" correctly answer the question "When Max hid too well, where did Joey look for him?"?

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- yes
***
Output: yes

Billy and Sally are brother and sister. Billy is seven and Sally is eight. Their mother, Deborah, likes to have Billy and Sally dress up in costumes and play a game where they are answering the telephone. Usually when they play the game, Billy answers the telephone in a loud voice, and Sally answers the telephone in a quiet voice. On Tuesdays, Billy answers in a quiet voice, and Sally answers in a loud voice. On Fridays, Billy answers in a loud voice and Sally in a quiet voice. Billy has blonde hair. Sally has brown hair. Deborah has blonde hair, and Billy and Sally's father, Bob, has brown hair. He tells them to eat lettuce every time that he sees them, so that they grow big and strong like he is. Deborah likes to add some sugar with the lettuce so that Billy and Sally know what it is like to have sweet tastes in their life. One day, a Wednesday, Billy throws some lettuce into Sally's hair. Deborah laughs an grabs some straw from their farm and puts it in Billy's hair. Billy and Sally live on a farm. They have a goat, named Joey, and a duck, named Quack. They sometimes play a game with the goat where they chase him around the farm. Other times, they play a game with Quack where they wave at Quack and laugh. They have a fun life growing up on the farm.

Question: "What games do Billy and Sally play?"

OPTIONS:
- no
- yes

Answer: "They have a goat, named Joey, and a duck, named Quack."

Response: no

(CNN) -- Horror-meister, Stephen King calls George Pelecanos "perhaps the greatest living American crime writer." His stories are set in Pelecanos' hometown of Washington, D.C., but this is not the side of the U.S. capitol that you see portrayed on TV with white marble monuments, lawyers and lobbyists. Pelecanos is more interested in working families struggling to get by, the racial tensions in its ethnic neighborhoods and the low-lifes on the edges. His crime-writing peers call Pelecanos the "undisputed poet" of Washington's gritty side. The best-selling and award-winning author is out this week with his 17th and latest novel, "The Cut." It's the first in a new series featuring Iraq war veteran and private investigator Spero Lucas. When he's not working for a Washington defense attorney, Lucas recovers stolen property for a 40% cut. Now, a high-profile crime boss hires Lucas to find out who's been stealing from him, and it could turn out to be Lucas' biggest payday or an untimely end. While Pelecanos made his bones in the noir tradition, there's a definite "Western" feel to "The Cut." The new novel takes place in a morally gray and often violent world. It's peppered with pitch-perfect dialogue and captures the sights, sounds and taste of Washington in rich detail. In short, Pelecanos reads like the real deal. Pelecanos knows a thing or two about capturing the authenticity of urban America with an ethnically and socially diverse cast. In addition to his success as a novelist, Pelecanos is a producer and writer for HBO's New Orleans-set, "Treme." He was previously a producer and Emmy-nominated writer on the hit series "The Wire" and the miniseries "The Pacific." Read an excerpt from "The Cut" CNN recently spoke to Pelecanos about his new novel. The following is an edited transcript. CNN: Tell me more about your new character, Spero Lucas.

Question: "Who is a poet, a producer and a crime writer?"

Response: "Maya Angelou"
OPTIONS:
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- yes

A: no

Problem: Density is also an important physical property of matter. The concept of density combines what we know about an objects mass and volume. Density reflects how closely packed the particles of matter are. When particles are packed together more tightly, matter is more dense. Differences in density of matter explain many phenomena. It explains why helium balloons rise. It explains why currents such as the Gulf Stream flow through the oceans. It explains why some things float in or sink. You can see this in action by pouring vegetable oil into water. You can see a colorful demonstration in this video.

Question: "What are three examples of density given in the article?"

Answer: "Watching a car drive"

OPTIONS:
- no
- yes
Answer:
no