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]: Why use nautical mile unit ?
Are spirogyra unicelluar ?
What determines an atoms chemical reactivity ?
When was margaret thatcher president ?
[A]: When was margaret thatcher president ?


[Q]: Perro what does it mean ?
What number was Elie engraved with at Auschwitz ?
What climate do coral reefs experience ?
What software made billgates rich ?
[A]: What number was Elie engraved with at Auschwitz ?


[Q]: Which country signed non-aggression pact ?
Who was times magazine person of the year in 1991 ?
How many calories in a mudium size apple ?
What do platelets release during a blood clot ?
[A]:
What do platelets release during a blood clot ?