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: The scout ship re-emerged from the hole - a brilliant speck emerging from a sphere of velvety blackness. 
Question: How many times did the scout ship re-emerge from the hole?
[EX A]: Yes.

[EX Q]: Sentence: Thats because the sound couldnt travel without air particles to transfer the sound energy. 
Question: What happens after the sound energy is transferred?
[EX A]: Yes.

[EX Q]: Sentence: A levee is a raised strip of sediments deposited close to the waters edge. 
Question: When was there a sediment deposit?
[EX A]:
Yes.

