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.

Ex Input:
Sentence: Density of matter reflects how closely packed the particles of matter are. Question: What physical property of matter reflects how closely packed the particles of matter are?

Ex Output:
density


Ex Input:
Sentence: Sporozoites are the cells caused that parasites spread through their host. Question: What are the cells caused that parasites spread through their host?

Ex Output:
sporozoites


Ex Input:
Sentence: The product of a wave's wavelength and its frequency is its speed. Question: The product of a wave's wavelength and its frequency is what?

Ex Output:

speed