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.

Example Input: What color is nitrogen in a discharge tube ?
Example Output: Good

Example Input: How do you avoid parallax error ?
Example Output: Good

Example Input: How much does a good doctor get paid ?
Example Output:
Good