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]: How do a caribou look like ?
Can flies be vectors ?
Quasi experimental and cause and efect ?
How much did nasa spend on a science exploration ?
[A]: Can flies be vectors ?


[Q]: Where is the cranshaft position sensor on a nissan altima 2005 4cylender ?
The human eye focuses by doing what ?
Process of making free cash flow ?
What is the 4 digit code on the radio on a 2003 ?
[A]: The human eye focuses by doing what ?


[Q]: What is scientific meaning of constant ?
When were cameras envented ?
How many litres in a 40 pounds propane tank ?
How many floors are ther in the Murkey cave ?
[A]:
How many litres in a 40 pounds propane tank ?