instruction:
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.
question:
Sentence: Blood enters the heart in atria valve. Question: Blood enters the heart in what valve?
answer:
atria


question:
Sentence: Protons and neutrons are made of quarks, which are fundamental particles of matter. Question: A fundamental particle of matter, protons and neutrons are made of these?
answer:
quarks


question:
Sentence: Soil, for human purposes, is a(n) nonrenewable resource. Question: What kind of a resource is soil, for human purposes?
answer:

nonrenewable resource