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 live in Australia, but am expected to use US English in my work. I am therefore used to spelling "-ise" as "-ize". I was a little surprised to find that "enterprise" is almost universally spelt with "-ise". Is there any particular reason that this is the case for this example, when "-ize" is so widely preferred in US English? 
Answer: For one, because the etymology is different. -ise (-ize) is a causative suffix in formalise, realise etc. (to make something formal, to make something real...) But enterprise is not "to make something enterpre" or similar (whatever that might mean). The prise bit comes as a past participle of French prendre (to grasp, to take). Another answer is that enterprize is actually attested, and was apparently used more than enterprise in the second half of 18th century (N-gram viewer).

Ex Output:
yes


Ex Input:
Question: As generally agreed and as extensively discussed in this question, "an" should be used in place of the more common "a" where the following word begins with a vowel sound. I have just encountered for the first time an instance of the phrasing an mule in the book Why Chemical Reactions Happen (James Keeler and Peter Wothers, Oxford University Press, 2003). (This book is not mine. I was sitting opposite a friend when the friend mentioned the unusual phrasing.) This phrasing appears to contradict the rule discussed above, since "mule" is, as far as I am aware, pronounced /mjul/ (see Wiktionary). Here is the context. The author is using an analogy to explain a chemistry concept (the italics are not mine, but the bold emphasis is): A useful analogy here is that of an mule, which we get by crossing a horse with a donkey. To describe an mule as a horse or a donkey would be inaccurate and it certainly does not interconvert rapidly between the two! Rather we need to recognize that although an mule has parts that are reminiscent of a horse and parts that a reminiscent of a donkey, it is something altogether different. Looking for other examples online, I have managed to find one on Wikipedia's List of Siege engines. Discussing a Siege engine, the Scorpio: Similar to the ballista, but smaller. Was sometimes mounted on an mule-drawn cart. Other examples are difficult to find, but here's one from a user-posted question on Answers.com (referring, notably, to a kind of deer rather than the animal, a mule): Is an mule deer an omnivore? No. Mule deer are herbivores. ... What is going on? Is there an irregular pronunication of "mule" of which I am not aware? Is this some strange language quirk, some archaic spelling that I am encountering for the first time? 
Answer: It's just a typo, and it probably originally said "an ass". That would have been changed because it's incorrect (an ass is a donkey, not a horsedonkey cross) and, even if it were correct, the fact that ass means well, you know, ass, might be distracting enough to make it worth changing. Another source of this kind of typo is when an adjective has been added or removed and the article hasn't been updated (e.g., "an elephant" becoming "an big elephant" or "an amazing coincidence" becoming "an coincidence"). That's presumably not happened in this particular text, since there are several instances of "an mule".

Ex Output:
no


Ex Input:
Question: I've found this phrase here on a recent BBC report: "...the mare in the video died after suffering a cardiac arrest on a gallops in April 2016." The same article has: "A video on social media shows James mount the animal at a gallops while some present can be heard laughing." (emphasis mine) It's a bit of a sad story, but I want to know what "a gallops" is. Google Ngrams has some indication that it might be a phrase rather than just a typo, and also that it might be rising in popularity. TheFreeDictionary redirects me to gallop. I know what "a gallop" is. It's the plural noun ("a gallops") that I have never heard used before. It feels like some kind of horse racing meet. Any formal (or informal) definition that fits this word? Is it short for something? 
Answer: This appears to be a specialized meaning, uncommon outside of the equestrian world. The OED gives a sense as 1c. A track designed or suited for the galloping or exercising of horses. 1848 A. Trollope Kellys & O'Kellys II. ii. 45: They've proper gallops there, which we haven't.

Ex Output:

no