In this task, you are given a fact statement and question based on the fact. Your task is to generate the correct answer for the question. The answer needs to be generated using the context fact statement.

Example Input: Fact: An example of playing a musical instrument is strumming a guitar string. Question: School children often play a musical instrument by?
Example Output: sweeping thumb across elastic band over a beverage carton

Example Input: Fact: conserving resources has a positive impact on the environment. Question: Using less anthracite has a positive impact on the?
Example Output: ecosystem

Example Input: Fact: oil is a source of energy. Question: Dinosaur carcasses are a form of?
Example Output:
fuel