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.

[EX Q]: Sentence: In this way the other major congressional interests can be brought together in the new committee's work. 
Question: How long did it take to form the new committee?
[EX A]: Yes.

[EX Q]: Sentence: The resolution creating the new intelligence committee structure should grant subpoena authority to the committee or committees. 
Question: What happens after a subpoena is granted?
[EX A]: Yes.

[EX Q]: Sentence: Durer's father died in 1502, and his mother died in 1513. 
Question: What happened after Durer's father died?
[EX A]:
Yes.

