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: Sexual reproduction usually occur during times of environmental stress. Question: What type of reproduction usually occur during times of environmental stress?

Output: sexual reproduction

Input: Consider Input: Sentence: The decayed remains of living organisms is called humus. Question: What is the decayed remains of living organisms called?

Output: humus

Input: Consider Input: Sentence: Evolution occurs by natural selection, a process whereby better-adapted members pass along their traits, according to darwin. Question: Evolution occurs by what process whereby better-adapted members pass along their traits, according to darwin?
Output: natural selection