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: Are both is equal to and equals similar in meaning? Which is the more natural? For example, one plus one equals two or one plus one is equal to two. 
Answer: Both are grammatically correct and mean the same. And both are the natural ways of saying it. Use either.
Example Output: yes

Example Input: Question: Is there a specific reason for this? After all, it is "boys and girls", rather than "girls and boys". If the boy (male) comes first here, why doesn't it come first in "ladies and gentlemen"? 
Answer: It comes from "My Lords, Ladies and Gentlemen". Titled men come first (My Lords); then their spouses [My] Ladies; Ladies also include non-titled ladies; and finally, untitled men (Gentlemen). Debretts, Preamble Precedents The following list gives the form in which important guests should be included in a preamble in order of precedence: Your Royal Highness My Lord Mayor (My Lord Provost, etc) See (i) Mr Recorder (outside London) Mr Chairman of the ...... County Council (outside Greater London) My Lord Chancellor Prime Minister (or, more formally, Mr. Prime Minister). See (ii) Your Excellency (ies) (this refers to Ambassadors and High Commissioners) Your Grace(s). See (iii) My Lord(s). See (iv) Ladies and Gentlemen. See (v) If you want to know what the footnotes (i) through (v) say, so you will be absolutely correct at your next speech, click on the link.
Example Output: no

Example Input: Question: I'm describing what an opiate addict looks like before recovery. Instead of saying "he looked like a vampire," I'd like to say something like "he looked [vampiric]." I actually just found out vampiric was a word, but I want something that sounds better (more colloquial/natural, I suppose) and covers a variety of traits (pale, emaciated, sickly, etc). Why I don't just use "vampiric": As @chepner commented: I think the idea is to find a word that isn't so "circular", and doesn't refer explicitly to vampires or require knowledge of vampires in context. If someone were to ask "What does a vampire look like?", then "It looks vampiric/vampirish" wouldn't be terribly helpful. I don't want to explicitly refer to drug addicts as vampires. I just want to capture those traits in the best way. 
Answer: For something often used to describe people and not an analogy like ghoulish or vampiric or cadaverous: pallid - very pale, in a way that looks unhealthy and not attractive.
Example Output:
yes