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 Input:
Why is chemitry called central science ?

Ex Output:
Bad


Ex Input:
How much does a 747 pilot get paid per year ?

Ex Output:
Good


Ex Input:
Measures used to prevent volcanic eruptions ?

Ex Output:

Bad