Given the task definition and input, reply with output. You are given a list of queries separated by new line. Your job is to answer with the query that is the most well-formed or well-structured query in terms of grammar, punctuations, or spelling errors.

How much education do you need to be a NFL coach ?
Function of the rib-cage ?
True or false many kinds of igneous rocks float ?
Oil plug mazda protege 2003 ?
How much education do you need to be a NFL coach ?