You are given a sentence, a question and two answer options ('A' and 'B'). Your task is to find the correct answer (return the string of the correct option, not 'A' or 'B') for the given question.

Ex Input:
Sentence: Jack and Jill are sliding a cellphone back and forth along the tabletop very easily. Their mother puts a tablecloth over the tabletop and it's not as easy to slide the phone anymore. Question: Which surface has less friction? (A) TABLETOP (B) TABLECLOTH

Ex Output:
TABLETOP


Ex Input:
Sentence: A cat and a dog both run at 5 mph. Question: If the cat runs for a longer time then the dog, which will have gone the greater distance? (A) cat (B) dog

Ex Output:
cat


Ex Input:
Sentence: The Williams twins, Joe and Jim are playing hockey. Joe is getting really sweaty but Jim is barely perspiring. Question: Which of them is getting more of a work out? (A) Jim (B) Joe

Ex Output:

Joe