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: I've seen many people who say: This is a HTML page. Yet I've also seen many people who say: This is an HTML page. Are both usages equally correct? Or, which is the grammatically correct one? Possible Duplicates: "A" vs. "An" in writing vs. pronunciation Do you use "a" or "an" before acronyms? 
Answer: It depends on whether you say aitch or haitch. An aitch tee em el page A haitch tee em el page.

Ex Output:
yes


Ex Input:
Question: Sometimes people are referring to mechanical objects as "she": I love my car. She always gets the best service. Are there any rules when it is appropriate to use "she" instead of it, and is "he" ever used in such context? 
Answer: The pronoun "she" is sometimes used to refer to things which can contain people such as countries, ships, or vehicles, or when referring to certain other machines. This, however, is considered a stylistically marked, optional figure of speech. This usage is furthermore in decline and advised against by most journalistic style guides such as the Chicago Manual of Style.[9] If used, the terms she, her, and hers are always used, regardless of the entity's name - for example, "The U.S.S. John F. Kennedy (CVA-67) was laid down October 22, 1964. She was launched on April 1, 1967..." "He" in reference to an inanimate object has not, as far as I'm aware, ever been common usage in English.

Ex Output:
yes


Ex 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.

Ex Output:

yes