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: How does one correctly apply 'in which', 'of which', 'at which', 'to which', etc.? I'm confused with which one to apply when constructing sentences around these.

Output: The trick to knowing how to use; of which, at which, in which, to which, from which is to analyse the prepositional phrases, phrasal verbs, verbs and prepositions: He /spoke of/ war and peace and many other topics that day. The topic /of which he spoke/ was complex. The verb here that means to speak about a topic is /to speak/ of a topic/: to mention The party /at which/ he spoke/ was noisy. Phrase: A party is held /at a place/. It is implied. The situation /in which/ we found ourselves was dire. Phrase: /to find oneself /in a situation. The bonds /from which/ we broke free were tight. phrase: to /break free/ from bonds. The town /to which/we were driving was 50 ks away. phrase: to /drive/ to a place. Summary (and not a complete answer but a general one): The preposition depends on the verb that takes a preposition, a phrasal verb that includes a preposition, or it depends on the prepositional phrase used. Also, there are many other prepositions that can be paired with which: under, during, about, over, etc.

Input: Consider Input: We were discussing something like pre-boss era, post-boss era. What word describes the era where the boss is still there?.

Output: Peri-boss era. This prefix allows you to create delightfully clear parallel construction that covers all cases: pre-, before peri-, during post-, after Google [ pre- post- peri- ] for examples 'in the wild'. These prefixes are popular in medical terminology, such as pre-, peri-, and post-anesthesia.

Input: Consider Input: In French, if I want to quantify a very small amount of time (but not fixed: it can be 5 ms or 0.1 ms) I can use a pouieme. Is there an equivalent in English? I'm not looking for an expression but for a standalone word. EDIT : In fact, I need to create a c++ class which will measure time and be equal to a 1/600s. In French, pouieme is a cute word which can means a very small but undefined amount of time. The issue is that I must write english code and that's why I would like to find a standalone equivalent.
Output: A blink of an eye and a split second come to mind. Edit: If you insist on a single word, you'll have to go with an instant, or get creative and change the sentence structure to accommodate a different part of speech, like momentar(il)y.