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: English isn't my mother tongue, and when we recently talked to a native speaker (during some company audit), he pointed out that the plural word "trainings" is actually wrong (he pointed that it is a very common mistake and was almost amused by it). I couldn't understand why and wondered what the correct plural of "training" would be. Online Dictionaries/Thesaurus don't answer it, so it's probably another opinion-based statement. I haven't found a source to back it up, though. 
Answer: Training is both countable and uncountable. Usually, referring to a process, it is uncountable and has no plural. It is sometimes used to mean "a specific training event", and is then countable, and has the plural "trainings". The OED has examples of this use going back to 1578, with the plural recorded from 1598.

Ex Output:
yes


Ex Input:
Question: Wikipedia says: A postscript may be a sentence, a paragraph, or occasionally many paragraphs added to, often hastily and incidentally, after the signature of a letter or (sometimes) the main body of an essay or book. When all letters were handwritten, and adding a new thought to the letter would have likely involved rewriting the entire letter, a postscript had obvious practicality. Now, however, one can just as easily add the thought to the main text. 
Answer: You seem to have answered your own question, but it's perhaps worth pointing out that in both email and conventional mail a postscript can be a consciously chosen device for drawing attention to what it contains. What might look like an afterthought to the reader might be a deliberate ploy by the writer.

Ex Output:
no


Ex Input:
Question: Possible Duplicate: Why don't we use the indefinite article with 'software'? In France I have always been told that saying "a software" is not correct English (as a nominal compound), and that "a piece of software" or "a software program/package/product/system" must be used instead. Recently I have doubts... is there any case where it is actually correct? Examples found on the Internet: SalsaJ, a software for data analysis at school So if you sold a software which required your customer to pay a monthly fee, [...] 
Answer: Think of it this way: would you say "a tableware" or "a glassware"? The word "ware" means "commodity". Everything that applies to "tableware" and "glassware" also applies to "software". The correct usage is "a piece of software" or something in that vein. I prefer "a program" or "a computer program" myself. Other alternatives are: an application, a computer application, an app, a software tool. (FWIW: as a software developer myself, I assure you that devs never use the term "a software" when they communicate.).

Ex Output:

no