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.

[Q]: Sentence: Peter wanted to show off his bark, but he was too tired.
Question: What time of day was it most likely?
[A]: Yes.

[Q]: Sentence: , followed by other ports at Hyeres, Antibes, and Nice.
Question: How often do you go to the ports?
[A]: No.

[Q]: Sentence: One result was two NSC-led interagency trips to Persian Gulf states in 1999 and 2000.
Question: Where did the NSC go after they were done with their trip?
[A]:
Yes.