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.

Input: Consider Input: Question: Possible Duplicates: Gender neutral pronoun Is it correct to use "their" instead of "his or her"? I am writing software documentation. I have this issue: I am talking about a generic user of the software. Should I say "his preferences", "his/her preferences" or "its preferences"? 
Answer: Do not use the passive voice in documentation addressed to the user. Address all instructions to the person who will follow them. The second person is appropriate, and (as this paragraph demonstrates) does not incur excessive use of the informal "you" if one sticks to the imperative tense. If addressing an administrator who himself has users, refer to the users with male gender as it is the grammatical convention. The problem is easily avoided by referring to them collectively, and using the phrase "the user" often.

Output: no


Input: Consider Input: Question: This phrase is all over the internet. They will say that something is free as in 'free beer' and free as in 'free speech'. I have never really understood this. Are these the examples of two different types of 'free'? 
Answer: Wikipedia on Gratis versus Libre: Gratis versus libre is the distinction between two meanings of the English adjective "free"; namely, "for zero price" (gratis) and "with few or no restrictions" (libre). The ambiguity of "free" can cause issues where the distinction is important, as it often is in dealing with laws concerning the use of information, such as copyright and patents. And further: With the advent of the free software movement, license schemes were created to give developers more freedom in terms of code sharing, commonly called open source or free and open source software. As the English adjective free does not distinguish between "for zero price" and "liberty", the phrases "free as in free beer" (gratis, freeware) and "free as in free speech" (libre, free software) were adopted. [...] "Free software is a matter of liberty, not price. To understand the concept, you should think of free as in free speech, not as in free beer." Richard Stallman Emphasis added.

Output: yes


Input: Consider Input: Question: In technical literature as well as aircraft user interfaces where there is not enough space to write the whole word, the prefix "trans" is shortened to "x". Transmit -> Xmit Transfer -> Xfer I am interested to know what is the origin of this. I am curious because "Ex" and "Trans" do not have a similar sound. 
Answer: In addition to the other edifying answers and comments: from an information-theory viewpoint, given the rarity of initial "x" in English words, the presence of it (especially if unpronounceable) is a clear signal that there is something at play slightly out of the ordinary, and it will not be easily mistaken for anything else. That is, information-theory-wise, the chance of misunderstanding is low (more technically/precisely, the error-correction properties of this usage are excellent).


Output: no