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]: The importance of using a database ?
What is the predominant language of Yemen ?
Principles of corporate finance ?
What do you call your wife ' w brother 's wife ?
[A]: What is the predominant language of Yemen ?


[Q]: What inspired Henri Matisse ti be an artist ?
What do mean by differentiation ?
How do you beat the case of the avalanche rescuecase on club penguin ?
Who invented the leibniz ?
[A]: Who invented the leibniz ?


[Q]: What type of simple machine is ax ?
What are the symtoms of dysentary ?
How many different varieties of trees ?
How do you change thermostat on 99 ford escort ?
[A]:
What are the symtoms of dysentary ?