A question that is free of any grammatical or logcal errors, should be labeled 'yes', otherwise it should be indicated as 'no'. A question is grammatically correct if all its entities i.e. nouns, verbs, adjectives, prepositions, pronouns, adverbs are at appropriate position. A question is logically correct if the semantic makes sense.

Input: Consider Input: Sentence: Wallace lives in Athens, W. Va., with her husband Rob, 37, and her daughters Rachel, 11, and Claire, 5.
Question: Is Wallace still married?

Output: Yes.

Input: Consider Input: Sentence: There were a couple times that the family dog, Mika, has tried to take Joey from Marsha and eat him!.
Question: How often does Mika try to eat Joey?

Output: No.

Input: Consider Input: Sentence: Ratners's chairman, Gerald Ratner, said the deal remains of ""substantial benefit to Ratners."".
Question: How often does the chairman speak publicly?
Output: Yes.