Given the Question and Answer pair, detect whether the answer is acceptable or not. Denote acceptable answer as "yes", otherwise denote as "no". An acceptable answer is consistent with the context in question, detailed, long, and uses general knowledge of English. Answers that are not definite and suggest a variety of options are not acceptable answers.

Input: Consider Input: Question: Perhaps you say a bad joke or you make a really awkward noise, and everybody suddenly stares at you? 
Answer: You could say that the room fell flat If a joke, idea, or suggestion falls flat, it does not have the intended effect: Cambridge Dictionary While it is primarily used to describe what was said, it can also be used to describe the room the statement was made in. Alternatively, you could say that there was a deafening silence deafening silence A noteworthy silence, or absence of response, especially one signifying disapproval or lack of enthusiasm. The suggestion that they work through the holidays met with deafening silence.

Output: no


Input: Consider Input: Question: Possible Duplicate: How do I say "Our meeting is preponed"? A friend of mine asked me this question, and it caught my curiosity. Is there an explicit opposite of the word postpone? As in, do something in advance? Clearly what I just said is functionally equivalent to the answer I am seeking, but I was wondering if there was a single word that is the antonym. More context: Bob was supposed to start work in July, but due to a work visa issue, he had to begin in advance. 
Answer: The most business-speaky option is expedite. Other alternatives include accelerate, hasten, and advance. Technically prepone is in fact the precise antonym, but I honestly wouldn't be caught dead using it.

Output: yes


Input: Consider Input: Question: So basically, I know the name for both sides of a coin, yet not the coin itself. In other words, when you refer to a coin, you don't want to say 'this object with one side heads, and the other tails', you would want to say 'this coin'. What I want is a general term to refer to two ideas, that are the absolute opposite to each other. I can't really use the word 'concept', or 'idea', because such words are already assigned to the very concepts/ideas themselves. 
Answer: Dichotomy. =] More generally, not limited to two ideas or opposing ones. Abstract concept or meta concept. In programming, we usually refer to it as a class, parent class, or abstract. Note that Abstract concept or meta concept can refer to something with more than two species, and to things that aren't limited to opposing species either. It's even more general / abstract ;).


Output: no