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: After the August missile strikes, diplomatic options to press the Taliban seemed no more promising than military options. 
Question: What happened after the strikes?

A: Yes.
****
Q: Sentence: In London at mid-afternoon yesterday, Ratners's shares were up 2 pence (1.26 cents), at 260 pence ($1.64). 
Question: How long did Ratners's shares stay up?

A: Yes.
****
Q: Sentence: The fiction of Japanese imperial power had become infinitely extendable. 
Question: How long were the imperialists presumed to hold power?

A:
No.
****
