In this task, you will be presented with a context passage, a question about that paragraph, and a possible answer to that question. The task is to check the validity of the answer. Answer with "Yes" or "No".

[EX Q]: Sound waves are mechanical waves. They can travel only through matter. They cannot travel through empty space. This was demonstrated in the 1600s by a scientist named Robert Boyle. Boyle placed a ticking clock in a sealed glass jar. The clock could be heard ticking through the air and glass of the jar. Then Boyle pumped the air out of the jar. The clock was still running, but the ticking could not be heard. Thats because the sound couldnt travel without air particles to transfer the sound energy. Is there any other place where sound cannot be heard? Here is a hint: is there any other place that does not have air molecules? Thats right, in space sound cannot be transferred. So can astronauts hear each other? Yes, they can, because they are in enclosed space stations or pressurized suits.In both cases, they are surrounded by air molecules. If they left their space ship and did not use their electronics, they would not be able to hear each other. Next time you watch a science fiction movie, think about this factoid. When spaceships are destroyed by hostile alien beings, there would be no sound heard. Sound waves can travel through many kinds of matter. <sep>Can sound waves travel through empty space?<sep>definitely not
[EX A]: Yes

[EX Q]: There are more than 30 attorneys in Butler County that volunteer for an organization offering free legal services for low income or elderly households. Legal Services of Southern Missouri (LSSM) serves 43 counties in this area and is dedicated to ensuring all people, regardless of their income, equal access to legal advice and counsel. Out of the 43 counties in the LSSM service region, Butler County has the fifth highest number of cases served in 2001 and the third largest number of attorney panel members. "The Butler County attorneys have really stepped up to the plate to help us represent the poor population in this county," said LSSM Director of Development Sharon Alexander. "We had approximately 400 cases in Butler County last year." LSSM is funded by the Legal Services Corporation (LSC)- a private, not-for-profit organization. Created by Congress, LSSM also receives funding from the Missouri Lawyer Trust Account Foundation and local area agencies on aging. But LSSM credits the attorneys that volunteer their time and skills to representing the underprivileged and elderly for the success of the organization. Currently, LSSM utilizes the services of 243 private attorneys who provide a minimum of 20 hours of pro bono or two pro bono cases per year. "Fundamentally, what we're trying to do is provide equal access to justice, for all people - regardless of their economic standing," said LSSM Board Member and volunteer attorney, Fred Hall. "If a husband knocks his wife down, breaks her jaw or arm - abuses her terribly - he will be picked up and put in jail. But he's entitled to have a public defender ... Don't you think she's entitled to have a lawyer to get a temporary restraining order from this guy?" LSSM operates like a law firm, but does not charge fees to their clients. Due to federal guidelines, LSSM does not accept cases concerning criminal, post-criminal, or municipal court matters. Rather, the attorneys provide pro bono counsel in matters such as protecting victims of spouse or child abuse, protecting individuals and families from loss of housing through illegal eviction or assisting the elderly in disputing Medicaid claim denials. "One example of a case we recently handled was over in Springfield," Alexander said. "There was an elderly woman who had some plumbing work done to her home and the work was not up to standards and the cost was above what it should have been ... we were able to help her through our pro bono program. One local Springfield attorney volunteered to handle the case." <sep>What do attorneys in the LSSM charge clients?<sep>Nothing; pro bono
[EX A]: Yes

[EX Q]: Three little kids lived in a great big house with a great big cat and many places for a great big cat to hide. Their great big cat was named Cowboy. And Cowboy was not a very nice cat. Cowboy liked to bite and chew and scratch a great many things. When Cowboy was happy, which was not very often, Cowboy liked to bite in to a blanket or soft toy and carry it around in his mouth. When Cowboy was hungry he liked to bite bright red tomatoes and suck out all the juice and seeds. And when Cowboy was feeling mean he liked to hide. Cowboy would hide, curled up tight in a ball under a blanket or behind a corner and wait for one of the little kids to pass by. When they did pass by Cowboy would jump at their feet and try to bite and scratch them. He did not know that what he was doing was not very nice. Cowboy was only a cat. A great big cat that did not know any better. <sep>Where did Cowboy hide in the great big house when he was being mean?<sep>Curled up tight in a ball under a blanket or behind a corner
[EX A]:
Yes