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.

Example Input: Question: Is singular correct, or is plural of "credential" correct for a single username & password pair? 
Answer: This isn't a question you can answer by thinking about the grammar - it's just a case of conventional usage. I've previously worked in the tech industry, and we would always say credentials, never credential. That would still be true even if the credentials were a single item like a certificate. [Edit to add: but Samuel has provided a counter-example to this in a comment on the OP.] In wider English, credential is valid - it's used for example in this Wikipedia article - but it's still more common to use the plural (see Oxford Dictionaries for confirmation). For example, I could say that I have presented my credentials to someone if I have shown them my passport, even though I've only shown them one physical item.
Example Output: yes

Example Input: Question: Is it correct to say "Wish you a happy weekend" or should I say "Wishing you a happy weekend"? 
Answer: In the UK we say 'Have a nice weekend.'.
Example Output: no

Example Input: Question: What's the difference between transparent and translucent? I am trying to describe this record pressing. 
Answer: Technically speaking translucent is semi-transparent. As simple as that. But translucent is only a technical term while transparent may be used figuratively i.e. something which is evident, clearly seen or understood. "Transparent policy, accounting etc.".
Example Output:
no