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: Lucrezia is an honorable woman and does not at first agree to meet with the stranger . 
Question: Is lucrezia an honorable woman today?

A: Yes.
****
Q: Sentence: By the beginning of the fourth century the Algarve had a bishop in place, based in Faro. 
Question: Did the bishop's position remain open after his tenure?

A: Yes.
****
Q: Sentence: The NMCC learned about United 93 from the White House. 
Question: Is United 93 still operational?

A:
Yes.
****
