TASK DEFINITION: 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.
PROBLEM: How many half dollars are in a roll ?

SOLUTION: Good

PROBLEM: What is accidental optic ?

SOLUTION: Bad

PROBLEM: What is yeast used for in food ?

SOLUTION:
Good