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: What is the difference between "Did you find?" and "Have you found?" When should I use the first sentence, and when the second one? 
Answer: Did you find is the simple past and indicates that you are no longer looking for it. Have you found is the present perfect and indicates a link with the present, specifically, that you could still be looking for it.

Ex Output:
yes


Ex Input:
Question: E.g. is short for exempli gratia, and is in common use to introduce an example within a sentence. Submit a sample of academic writing, e.g., a dissertation chapter. However, some authors use ex. or ex: (short for "example") for the same purpose, and this form is listed in some authorities like the Wiktionary. Submit a sample of academic writing, ex: a dissertation chapter. I know they both roughly mean "example", but which one should I use, and when? Are there connotations associated with one or the other? This question has been asked elsewhere, and this very answer comes up when you ask Google about the difference. It would be good to get an EL&U answer for it. 
Answer: E.g. is short for exempli gratia and stands for "for example". Ex., if used to mean the same, is incorrect. Mostly ex. is used as short for exercise and not "for example".

Ex Output:
yes


Ex Input:
Question: I am looking for a derogatory term that can be used to describe a novice soldier/conscript who is awful at army-stuff. Something like cannon fodder but it should stress the incompetence of the described person, but it can't be a vulgarism. It is meant to be a unit name for a game set in a fantasy-medieval setting. 
Answer: The appropriate word is gomer. Gomer: military slang. An inept or stupid colleague, especially a trainee.

Ex Output:

yes