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.

[EX Q]: Light emitting diod mean ?
How did Nelson Mandela played in abolishing apartheid ?
How big is nano technology ?
Why is genome sequencing important ?
[EX A]: Why is genome sequencing important ?

[EX Q]: What year was did contemporary art start ?
How do space craft move when they are in space ?
Phylum of a crab ?
Where is the fuse for rear hatch on vw beetle ?
[EX A]: How do space craft move when they are in space ?

[EX Q]: What are the subject requirements for being a paediatrician ?
What is size of dubai bus ?
How is phenotype determined ?
What is an instrument to measure high ?
[EX A]:
How is phenotype determined ?