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: Once we arrive, the castle looked much bigger than we had imagined. 
Question: when did you see it?

A: No.
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Q: Sentence: During a blackout , the house is attacked by aliens , who had previously killed Joe and abducted Iris . 
Question: Were the aliens still present in the attacked house the next day?

A: No.
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Q: Sentence: From Hunter Huss, she moved on to pursue a degree at Pfeiffer University in Misenheimer. 
Question: Is she still a student at Pfeiffer University?

A:
Yes.
****
