Given a statement and question, generate the answer to the question such that the answer is contained in the statement.

Input: Consider Input: statement: Going from place to place with an automobile necessitates navigation., question: What does going from place to place with an automobile require?

Output: navigation


Input: Consider Input: statement: Pedigrees are useful tools for studying heredity., question: Pedigrees are useful tools for studying what?

Output: heredity


Input: Consider Input: statement: pollution contains sulfur., question: What does pollution contain?


Output: sulfur