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: Martinez works two jobs as a physician's assistant and supports his elderly parents and 8-year-old son. 
Question: How often does Martinez work?
[EX A]: Yes.

[EX Q]: Sentence: Grants of tax-free land over the years had been made to Buddhist temples and members of the court aristocracy. 
Question: When were the grants introduced?
[EX A]: Yes.

[EX Q]: Sentence: Nibras and Quso delivered money to Khallad in Bangkok during Khallad's January 2000 trip to Kuala Lumpur and Bangkok. 
Question: How often does Khallad make these trips?
[EX A]:
Yes.

