If you build a campfire, you start with a large stack of sticks and logs. As the fire burns, the stack slowly shrinks. By the end of the evening, all that is left is a small pile of ashes. What happened to the matter that you started with? Was it destroyed by the flames? It may seem that way. What do you think happened? The truth is that the same amount of matter still exists. The wood changed not only to ashes, but also to carbon dioxide, water vapor, and other gases. The gases floated off into the air, leaving behind just the ashes. Although matter was changed, it was not created or destroyed. Because the same amount of matter still exists, we can say that matter is conserved. You may wonder how it can be conserved if something is now missing? Assume you had measured the mass of the wood before you burned it. Assume you had also trapped the gases released by the burning wood and measured their mass and the mass of the ashes. What would you find? The ashes and gases combined have the same mass as the wood you started with. This example illustrates the law of conservation of mass.

Question: "Is any matter created when you burn wood in a campfire?"

OPTIONS:
- no
- yes

Answer: "No"

Response: yes

Nine families displaced by a fire at Alamo Hills Apartments in March filed lawsuits Wednesday against the apartment complex. They allege that the complex could have done more to protect belongings they were forced to abandon in the aftermath of the blaze. Bernard Dempsey Jr., an attorney with Western Michigan Legal Services, the group that represents the tenants, said Alamo Hills gave the displaced families very limited opportunity to remove belongings. "They were given three days to get their stuff out, and if they couldn't get moved out in three days, their stuff was discarded," Dempsey said. "Alamo Hills just threw it out." Others, he said, lost possessions to looters after the March 23 blaze, which left 78 people temporarily homeless. According to the lawsuit, the tenants were prohibited from entering their apartments to retrieve possessions and were promised that the complex would provide security. A spokesperson for PM One, the company that manages Alamo Hills, could not be reached for comment. Nine separate suits were filed in 8th District Court, which handles civil claims of less than $25,000. "We're asking for the reimbursement of the value of their property and a small amount for stress -- $3,000 on top of their out-of-pocket expenses for their lost stuff," Dempsey said. "They're not looking to get rich off this. A lot of this is simply because they were treated so badly." Dempsey said most of the tenants who filed suits still live at the apartment complex, although many are trying to find homes elsewhere. "The new apartments (they were provided) were not in very good shape. That's actually one of the claims," he said.

Question: "In general, why did nine families who were displaced by a fire at Alamo Hills Apartments file lawsuits against the apartment complex?"

Response: "The sued because of the fire"
OPTIONS:
- no
- yes

A: no

Problem: One day, Phoebe woke up and found that her house had been broken into. Her front door was wide open. She went into the living room and saw that her television set and stereo were missing. She checked the kitchen, but didn't find anything missing there except for a clock. Then she saw that her purse had been stolen too. She called the police to report what had happened. The police officer told her that there had been a lot of cases like this in her neighborhood lately, and they were looking for the criminals. Phoebe went into her bedroom and started to cry. She had no money to buy a new television set or stereo. She was scared that the robbers might try to break into her house again. She called her friend Mary and asked her what to do. Mary told Phoebe to change her front door lock right away. She said she knew a detective who could try to find the robber who had broken into her house. Phoebe thanked Mary, and said she felt safe knowing that there was someone who could help her catch the robber so he wouldn't do it again.

Question: "What made Phoebe cry?"

Answer: "Nobody to help her"

OPTIONS:
- no
- yes
Answer: yes

Question:
The Principals Committee had its first meeting on al Qaeda on September 4. On the day of the meeting, Clarke sent Rice an impassioned personal note. He criticized U.S. counterterrorism efforts past and present. The "real question" before the principals, he wrote, was "are we serious about dealing with the al Qida threat? Is al Qida a big deal? Decision makers should imagine themselves on a future day when the CSG has not succeeded in stopping al Qida attacks and hundreds of Americans lay dead in several countries, including the US," Clarke wrote. "What would those decision makers wish that they had done earlier? That future day could happen at any time." Clarke then turned to the Cole." The fact that the USS Cole was attacked during the last Administration does not absolve us of responding for the attack," he wrote. "Many in al Qida and the Taliban may have drawn the wrong lesson from the Cole: that they can kill Americans without there being a US response, without there being a price." After reading the above, is "Decide" the correct answer to the question "What two things did Clarke urge decision makers to do because the future could happen at any time?"? OPTIONS:
- no
- yes

Answer:
no

Alien Planet starts out with an interstellar spacecraft named Von Braun , leaving Earth's orbit . Traveling at 20 % the speed of light , it reaches Darwin IV in 42 years . Upon reaching orbit , it deploys the Darwin Reconnaissance Orbiter , Which looks for potential landing sites for the probes . The first probe , Balboa , explodes along with its lifting body transport during entry , because one of its wings failed to unfold . Two backup probes , Leonardo da Vinci and Isaac Newton , successfully land on the planet , and learn much about its bizarre indigenous lifeforms , including an apparently sapient species . The robotic probes sent out to research on Darwin IV are called Horus Probes . Each Horus probe consists of an { { convert } } long inflatable , hydrogen-filled balloon , Which is covered with solar receptors , a computer ' brain ' , a ' head ' covered with sensors , and several smaller robots that can be sent to places too dangerous for the probes themselves . The probes have a limited degree of artificial intelligence , very similar to the ' processing power ' of a 4-year-old . All the real thinking is done by a supercomputer in the orbiting Von Braun . The probes are programmed with different personalities ; Ike is more cautious , while Leo is the risk-taker . The two probes are also equipped with a holographic message that will be projected to any sentient life found on Darwin . After the two probes inflate their gas-bags , they encounter a voracious Arrowtongue and watch it pursue a Gyrosprinter .

Question: "How long does it take for Alien Planet to reach Darwin IV?"

OPTIONS:
- no
- yes

Answer: "It takes 42 years"

Response:
yes