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.

[Q]: 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?
[A]: quarks


[Q]: Sentence: When sediments settle out of water, they form horizontal layers. Question: When sediments settle out of water, what do they form?
[A]: horizontal layers


[Q]: Sentence: Adding the number of protons plus the number of neutrons in an atom decides its approximate mass; atomic number is another word for this value. Question: Adding the number of protons plus the number of neutrons in an atom, decides it's approximate mass, what is another word for this value?
[A]:
atomic number