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.

Sentence: The Vice President's guidance was we need to take them out."". 
Question: How often does he want to take out entities?
No.

Sentence: In a matter of 48 hours, Alexander II planned to release his plan for the duma to the Russian people. 
Question: What did Alexander II do before releasing his plan?
Yes.

Sentence: On London's Stock Exchange, Reuters shares rose five pence to 913 pence ($14.43). 
Question: Has i always been on the exchange?

No.

