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: This is similar to a palindrome but, instead of a word/sentence that reads the same forwards and backward, is there a word for words/sentences that read the same right side up and upside-down? See picture below where the word "yeah" is written in cursive: 
Answer: Another answer is symmetric, although that's a broader term. More specific: that it has rotational symmetry. Even more specific: symmetric under a 180 rotation, or it has 180 rotational symmetry. A mathematician might say that it has the symmetries of a parallelogram.

Output: no


Input: Consider Input: Question: I am looking for a word or phrase which can be used in the sentence: It is a rather old, but _________________ technology. The word or phrase should address a technology that is totally investigated, researched in detail, and thoroughly optimised, so there is nothing more to find out or improve. 
Answer: I don't know of a technology that cannot be improved, but we often use the term mature to describe technology that's deemed developed enough to be left alone: A mature technology is a technology that has been in use for long enough that most of its initial faults and inherent problems have been removed or reduced by further development. In some contexts, it may also refer to technology that has not seen widespread use, but whose scientific background is well understood. Wikipedia mature 6. No longer subject to great expansion or development. Used of an industry, market, or product. American Heritage® Dictionary.


Output: yes