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.

Input: Consider Input: Sentence: Water makes up most of  biological tissues. Question: What makes up most of  biological tissues?

Output: water


Input: Consider Input: Sentence: Acid rain may be caused by air pollution. Question: Acid rain may be caused by what?

Output: air pollution


Input: Consider Input: Sentence: High altitude above sea level causes the alpine tundra to be so cold. Question: What causes the alpine tundra to be so cold?


Output: high altitude above sea level