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.

What are the differences between compilers and interpreters ?
Good

What kind of movies did teenagers watch in the 1950s ?
Good

How do dolphins protect themselves form predators ?

Good