In this task, you are given a sentence and a question, you would be asked to create the answer which is contained in the sentence provided.

Sentence: Precipitation are a natural process that allows water to return again to the earth’s surface. Question: What natural process allows water to return again to the earth’s surface?
precipitation

Sentence: Cell mutations is the most common cause of cancer. Question: What is the most common cause of cancer?
cell mutations

Sentence: The ears are an external feature in human beings is responsible for balance. Question: What external feature in human beings is responsible for balance?

ears