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.

Input: Consider Input: Sentence: Several tenants blame other neighbors as perpetrators of the rift, however. 
Question: Have the tenants been angry for very long?

Output: No.


Input: Consider Input: Sentence: He tried and tried to please every person who came to the store, but they all picked smaller puppies. 
Question: Did he still plead the next day?

Output: No.


Input: Consider Input: Sentence: It refers to a woman who is dangerously attractive, and lures men to their downfall with her sexual attractiveness. 
Question: When did she lure them?


Output: Yes.


