Read the given query and classify it as a 'Good' or 'Bad' query depending on how well the query is formed, 'Bad' being the expected output for a not so well formed query and 'Good' being the expected output for a well formed query. A query may be wrong based on common sense or general facts, but if it is well formed, you should answer with Good.

Q: Hydrology is a study of what ?

A: Bad
****
Q: National flower of the Italy ?

A: Bad
****
Q: What determines sex of fetus ?

A:
Bad
****