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.

Q: Question: This is similar to a palindrome but, instead of a word/sentence that reads the same forwards and backward, is there a word for words/sentences that read the same right side up and upside-down? See picture below where the word "yeah" is written in cursive: 
Answer: That is called an ambigram. It is a typographical design that can be read in more than one direction. ambigram noun A typographical design consisting of text modified in such a way that it can be read in multiple orientations, as in mirror image, inverted, or when rotated. (ODO) Famously (?) used in Dan Brown's Angels and Demons.

A: yes
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Q: Question: Possible Duplicate: Is a company always plural, or are small companies singular? When I'm referring to a group of multiple things, should it be considered singular or plural for the purposes of applying a verb to it? For example, which is correct in the examples below? A sentence is a group of words that is followed by a period. A sentence is a group of words that are followed by a period. The group of people constitutes a jury. The group of people constitute a jury. A group of crows is called a 'murder'. A group of crows are called a 'murder'. My instinct is that it depends on whether the verb is referncing the group itself or the members of the group directly, but is that right? 
Answer: According to the OALD, group can actually serve as either a plural or singular noun. The category they give is "countable + singular or plural verb". So, an example of correct use is: A group of us is/are going to the theatre this evening. For any of your examples, both is and are can be used. I think the difference between them is as you say: use is when you are referring to the group, and use are when you are referring to the members of a given group. This page on when to use "group" as plural from Washington State University backs this up, saying: When the group is being considered as a whole, it can be treated as a single entity: "the group was ready to go on stage." But when the individuality of its members is being emphasized, "group" is plural: "the group were in disagreement about where to go for dinner." To analyze your given examples, here are some notes: A sentence is a group of words that is followed by a period. Use this form if you're talking about the group itself. That is, a sentence is a group of words followed by a period. A sentence is a group of words that are followed by a period. This implies that "This. Is. A. Sentence" is a sentence. The group of people constitutes a jury. The group of people constitute a jury. This would be more correct, since you are describing the nature of the group. A group of crows is called a 'murder'. This would be correct, since you're again describing an entire group. A group of crows are called a 'murder'.

A: yes
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Q: Question: It is common in American English to refer to a powerful person or organization as an 800 pound gorilla. The expression makes sense -- a gorilla of that size would certainly be intimidating -- but what's so special about the number 800? Searching "n lb gorilla" on Google for various values of n results in many more hits when n = 800 than when n is any other quantity. Also, the Google Ngram Viewer finds notable occurrences of the phrase "800 pound gorilla" in texts starting around the late 1970s; other sized gorillas don't seem to be mentioned at all. The Wikipedia entry for the idiom claims that the phrase is rooted in a riddle ("Where does an 800lb gorilla sleep?"), but that's just passing the buck. A 700lb or 900lb gorilla would be equally entitled to sleep wherever he wants to. Interestingly, the Wikipedia entry for gorilla states that the average male gorilla weighs about 400lb, occasionally reaching 500lb in the wild. Only obese gorillas in captivity have attained weights of 600lb. So the number doesn't even seem to be related to gorilla biology (except that it is safely larger than any known gorilla, save King Kong). Given that it's an arbitrary figure, is there any reason the number 800 would be more popular than any other? More generally, is there any relevant research into why some numbers would be more popular or pleasing than other in contexts like this? 
Answer: Quite large gorillas in the wild are at most 550 pounds; so an 800 pound gorilla is one that's oversized, even fat. As Wikipedia states, this phrase first originated with a riddle, "Where does an 800 pound gorilla sleep?" Ans: "Anywhere it wants." Because this is the standard idiom, when people want to speak hyperbolically they will sometimes exaggerate the number to "1,000 pound gorilla", or some other, even larger number. In short: no, the number 800 does not have any special significance, except perhaps with reference to the typical (male) gorilla's average weight (450 pounds).

A:
yes
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