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.

Input: Consider 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).

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.'


Input: Consider Input: The US emergency telephone number 911 seems to be almost always pronounced as nine one one whereas the Porsche model is typically pronounced as nine eleven One reason I can think of for preferring 'nine one one' for the phone number is that there is no 'eleven' key on a phone. On the other hand, '0800' is often pronounced 'o eight hundred'. Is there a logical or historical reason for the different pronunciations?.

Output: How a car manufacturer names its models is more of a marketing preference than anything, but in general you'll find that the Porche model is the norm. Ask any schoolchild to read aloud the number '911' and you'll get 'nine hundred and eleven', not 'nine one one'. The telephone number 9-1-1 was, as you speculated, spelled out specifically to prevent people - particularly children - from getting confused looking for the 'eleven' key on the telephone. I have heard this anecdotally countless times, but I'm having a hard time finding an authoritative source. Closest I can come are various 'history of 911' websites like this one: Dr. Phil Shaenman, head of the U.S. Fire Administration's research department, authored a paper explaining that children should be taught to dial 'nine-one-one,' and not 'nine-eleven.' He pointed out that a child's conceptual abilities prevent them from recognizing the difference between '11' and '1-1.'


Input: Consider Input: I keep writing dataset. Is that correct, or should I write data set?.


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.