Question: how do you tell if a word is a preposition word and how do you tell what the rest of the word is? 

Answer: One thing my english teacher told us was if you can fit 'the cloud' into it, it's probably a preposition (it doesn't actually have to make sense):\n*up the cloud\n*around the cloud\n*through the cloud\netc. \n\nThe noun or pronoun directly following the preposition is the object.
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