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.

Q: Most common matter is a mixture of substancestrue or false ?
What sybolizes happiness ?
When were pen invented ?
What north carolina city was the scene of a major race riot in 1898 ?

A: What north carolina city was the scene of a major race riot in 1898 ?
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Q: Which mountain area is in North Amarica ?
How many different types of doctor are there in the US ?
List of countries rich in natural resources in north-central asia ?
How many metres in 0.4 hectares ?

A: How many different types of doctor are there in the US ?
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Q: What color are johnnie walker eyes ?
Geography - What is the doubling time for italy ?
What is the lowest layer for the stratophere ?
Witch colony was delaware ?

A:
What is the lowest layer for the stratophere ?
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