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.

Study the short and long term problems and benefits of the Industrial Revolutions ?
Bad

Where would you find a ` delta ' ?
Good

When were cameras envented ?

Bad