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Answer:
first one: samir not went anywhere yesterday.
second one: mohan said to me that she lives in a town
Explanation:
maybe this will help you
This sentence basically means that an explanation to the problem was the costs of prisons and the recession in the U.S during the times of December 2007 through June 2009.
It is the reason something exist for example if you ask what the purpose of a car is you would say its purpose is to get me from one place to another.