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: It is dark does photosynthesis not occur in the deep-water zone. Question: Why does photosynthesis not occur in the deep-water zone?

Output: it is dark

Input: Consider Input: Sentence: Diffusion is the process in which a substance naturally moves from an area of higher to lower concentration. Question: What is the process in which a substance naturally moves from an area of higher to lower concentration called?

Output: diffusion

Input: Consider Input: Sentence: The mineral quartz is used to produce glass. Question: What mineral is used to produce glass?
Output: quartz