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.

Ex Input:
Question: The B strings tuned w/ low E 7th fret harmonic-(6th string,7th fret). 
Answer: The shorthand w/ is used to mean with. 2 pieces toast w/ gravy Is a shorter way of writing "Two pieces of toast with gravy." The B strings tuned w/ low E 7th fret harmonic-(6th string,7th fret). means "The B strings tuned with low E, 7th fret harmonic . . ." Edited to add: As Denis de Bernardy correctly notes in the comment below, w/o means the opposite: without.

Ex Output:
yes


Ex Input:
Question: How can I explain to people that the phrase off of is grammatically incorrect? I've heard this phrase used a lot, especially by Americans (though they aren't the only ones). In my understanding, off of should usually be replaced by off, as in, I took the book off the shelf as opposed to I took the book off of the shelf Am I wrong? Or is there perhaps some simple way I can explain this to most people? 
Answer: How can I explain to people that the phrase "off of" is grammatically incorrect? You can't, because it's not. There are thousands of examples of "off of" in the Corpus of Contemporary American English, not just in spoken English, but in magazines, newspapers, and academic journals as well. "Off of" is well-established as standard in American English. Plain "off" may be stylistically preferable in many cases, but it is simply not a rule of English grammar that if a word could be removed it must be removed. Some people seem to think that such a rule exists. It does not.

Ex Output:
yes


Ex Input:
Question: Is penultimate commonly used in English, or are its variations (such as second to last) more common? I need to use it in conjunction with the expressions First Payment Date and Last Payment Date to name variables while programming. In my mother language (Portuguese) Penultimate Payment Date would be fine, but it feels strange in English. (I know feels strange is not very helpful, but I'd like to know how to convey the meaning in the most natural way.) 
Answer: Penultimate is a regular word in the normal register in Portuguese or Spanish: penultimo. In English, however, it becomes a much more educated word belonging to a much more learned, or elevated, register. Therefore to translate to English and keep to the same register, you must select the more pedestrian next-to-last. (Then again, if we were linguists talking about syllable stress, we would not be afraid to use this word. It just isn't a blue-collar world; it's a professional one.) It's like asking whether you can translate PT/ES cotidiano to EN quotidian. Yes, you can, but you shouldn't, because you've crossed register boundaries, which means it doesn't sound equivalent even thought it means the same thing. Not always, but in general, when you find a word in English that's a close cognate with something from Romance, the register has switched, and you should look for a more Anglo-Saxon word if you want to keep to the same style. Because of the Norman occupation, Modern English often has pairs of words in different and contrasting registers, where a more purely Romance or purely Germanic language than English now is would have only one. This gives English more flexibility and nuance by having recourse to a pair of terms instead of having one alone. But it is a perilous thing for non-native speakers, who must keep an eye out for a probably shift in register. Does that make sense?.

Ex Output:

no