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".

Let me give you an example: Timothy likes to play sports. He spends his time after school playing basketball and baseball. Sometimes Timothy pretends he is a famous baseball pitcher for his favorite team with his friends. He plays with his friends Mandy and Andrew. Timothy also plays pretend when he is alone. He has an imaginary friend named Sean. Sean is an elephant who watches television with Timothy. Mandy likes playing baseball but she also likes to paint. Mandy's favorite class at school is art. She likes making pictures of flowers. Her teacher says she is a good artist. She painted a picture of a tree for her teacher. There were red and yellow leaves on it. It had apples on it. When Andrew goes home after baseball, he likes to eat a snack. He eats carrots and bananas. If he is a good boy his mom, Mrs. Smith, sometimes gives him milk and cookies. Afterwards, Andrew finishes his homework. <sep>Who does Timothy play with?<sep>Basketball and baseball
The answer to this example can be: No
Here is why: Based on the passage Timothy plays with his friends Mandy and Andrew. So, the given answer is incorrect and the output should be "No".

OK. solve this:
 We were cornered in a sort of way already.  But these butchers up the cavern had been surprised, they were probably scared, and they had no special weapons, only those little hatchets of theirs.  And that way lay escape.  Their sturdy little forms--ever so much shorter and thicker than the mooncalf herds--were scattered up the slope in a way that was eloquent of indecision.  I had the moral advantage of a mad bull in a street.  But for all that, there seemed a tremendous crowd of them.  Very probably there was.  Those Selenites down the cleft had certainly some infernally long spears.  It might be they had other surprises for us.... But, confound it!  if we charged up the cave we should let them up behind us, and if we didn't those little brutes up the cave would probably get reinforced.  Heaven alone knew what tremendous engines of warfare--guns, bombs, terrestrial torpedoes--this unknown world below our feet, this vaster world of which we had only pricked the outer cuticle, might not presently send up to our destruction.  It became clear the only thing to do was to charge!  It became clearer as the legs of a number of fresh Selenites appeared running down the cavern towards us. <sep>Who were shorter and thicker than the mooncalf herds?<sep>Bulls
Answer:
No