Generate the answer for a given question. The question requires common knowledge of English. Make sure that the answer is in detail, long, consistent with the context, and requires general knowledge of English. To be less repetitive, please vary your language for each question. Give a proper explanation to answer, and if necessary, provide the definition of various terms. And conclude your answer if it's long. If you have used other resources (e.g., Merriam Webster's.) to answer the question, include citations in your answer. You don't need to paraphrase the context of your resources, but make sure that your answer is consistent and complete.

Example Input: I keep writing dataset. Is that correct, or should I write data set?.
Example Output: As @mmyers notes, dataset does not appear in any dictionaries. However, there are 172 incidences in the Corpus of Contemporary American English, and all but a handful are in the 'academic' section, representing formal academic writing. Its lack of appearance in dictionaries is probably because it is a fairly new coinage, the two examples from the Corpus of Historical American English are from 2001. Nothing from before then. Interestingly, the British National Corpus has 51 incidences, dating from the 1980s to the mid 1990s.

Example Input: I need a single-word to describe something good that (unexpectedly) resulted from something bad. This good thing could not have occurred without the bad event happening first, as a precursor. Example sentence: 'I got in a horrible car accident and broke my leg, but falling in love with my nurse at the hospital was the ____,' (something like that).
Example Output: silver lining 'I got in a horrible car accident and broke my leg, but falling in love with my nurse at the hospital was the silver lining' From Wikipedia A silver lining is a metaphor for optimism in the common English-language which means a negative occurrence may have a positive aspect to it. Etymonline says: a 'bright side' which proverbially accompanies even the darkest trouble; by 1843, apparently from oft-quoted lines from Milton's 'Comus,' where the silver lining is the light of the moon shining from behind the cloud. Was I deceived? or did a sable cloud Turn forth her silver lining on the night? I did not err, there does a sable cloud, Turn out her silver lining on the night And casts a gleam over this tufted grove. To which Thomas Warton added the commentary: 'When all succour eems to be lost, Heaven unexpectedly presents the ilver lining o a able cloud to the virtuous.'

Example Input: A friend posed the following word puzzle to me: Can you think of a sentence that keeps the same meaning whether you use 'it's' or 'its'? He asserted that this puzzle does in fact have a solution. However, it has me completely stumped. I tried to solve an easier problem, to find a sentence which is still grammatical if you change an 'its' to 'it's', but all I could come up with is examples like 'It's light!' (which is, strictly, more of a sentence fragment). What is the solution to the word puzzle? Or, is there some way I can 'prove' that the puzzle should have no solution?.
Example Output:
I gather from previous answers that there are two ways in which this question can goeither we interpret it strictly, and don't make assumptions about what it's asking, or we interpret it loosely. If we interpret it loosely, we can bend the rules a bit: As in the Hans Adler's answer, which I was picking on earlier, we can interpret 'same meaning' more loosely. In this case, the solution works well (and I'm sure there are more that work even better) wherein one sentence indicates that you see the tree's apples, and one indicates you see that the fruit which the tree bears is the apple. We can also use a construction (I took this idea from another answer) like: 'I cannot comprehend it's red.' = 'I cannot comprehend its red.' A sneaky solution can be to put 'its' and 'it's' in quotes in the sentence, to come up with something like: 'I wrote a sentence with 'it's' and 'its' in it.' = 'I wrote a sentence with 'its' and 'it's' in it.' We can spell something incorrectly, as Hans Adler ironically points out in the most downvoted answer. Or, as my girlfriend suggested, we can replace the 'it' in the contraction 'it's' with a proper noun (like that clever guy Stephen King did), making 'it's' refer to something that belongs to someone or something named It. In this case the solution becomes again trivial, since 'its' is also a possessive. 'This clown is named It. It's nose is red.' = 'This clown is named It. Its nose is red' (we sadly, in the last case, refer to a clown as an object, but it does have the same meaning) Alternatively All of these answers, to me, are trivial and make the puzzle somewhat boring. If we don't want the puzzle to be boring, we can't cut corners. In this case, as a few have pointed out, it is most likely impossible.

