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.

[EX Q]: Propane Tanks Weights ?
[EX A]: Bad

[EX Q]: What is the difference between an elemental molecule and an atom ?
[EX A]: Good

[EX Q]: How much is a silver certificate dollar bill 1957a ?
[EX A]:
Bad