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: In the movie Easy A, the character Todd said "See you at salt mines" to Olive when they met at Melody's party. What does salt mines mean? Does it really mean "a mine for salt"? 
Answer: Salt mines are, of course, just mines for salt, but in classical times, they were staffed by slaves, typically POWs, and the work was so arduous and the environment so dangerous, that being sent to the salt mines was considered a death sentence. To describe any job as a "salt mine" is a hyperbolic way of saying the work is unpleasant, arduous, or repetitive. edit reading John's reference, I realized I was confusing salt mines with classical tin mines (also very unpleasant). Salt mines are more recent and their staff, not necessarily POWs.

Output: yes


Input: Consider Input: Question: How can you explain that this double negation is not a double negation? Is there a rule in English about this kind of sentence? PS / Do I have to mention Pink Floyd Copyright ? :-) Edit : Since there are a lot of Pink Floyd related explanation, I'll bring a Freddy Mercury one : "I don't have time for no monkey business", which I also understand as "I don't have time for monkey business". Am I right ? 
Answer: You could assume that commas have been left out: "We do, not need, no education" in which case the implication would me that although education is needed, they do not 'do' it (incorrect, but could be appropriate as slang). Alternatively: "We do not [have], need no, education" Where the repition is used as emphasis: "we do not [have] education, and we need no education" Both of these are a bit of a stretch, and while possible, I doubt they are what Pink Floyd intended.

Output: no


Input: Consider Input: Question: I'm a non-native English speaker, and my automatic spellchecker seems to accept both therefore and therefor. Is one orthography preferred ? Is that a British vs. American difference ? Or an old vs. more recent orthography ? Or something else ? 
Answer: Therefore and therefor are completely different words. Therefor, an archaic word, means "for this", "for that", or "for it". E.g; ... ordering goods and enclosing payment therefor. Therefore means "for that reason" or "hence".E.g; Those people have their umbrellas up: therefore, it must be raining.


Output: no