In this task, You are given an open-domain question that can be answered based on factual information. Your task is to provide \*short\* answer (in a few words only) for the given question. The short answer can be one or more entities or it can also be boolean \*yes\* or \*no\*.
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Question: what is the microscopic unit of the kidney

Answer: The nephron


Question: the reciprocal (inverse) of the period of oscillation is

Answer: Frequency


Question: where is the rio grande river located in jamaica

Answer:
parish of Portland