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: Minerals form when they precipitate from hot fluids that have done cooled down. Question: Minerals form when they precipitate from hot fluids that have done what?
[A]: cooled down

[Q]: Sentence: Do waves move faster close particles are close to each other or far away. Question: Do waves move faster when particles are close to each other or far away?
[A]: close

[Q]: Sentence: Oxygen element chemically weathers rock by combining with a metal. Question: What element chemically weathers rock by combining with a metal?
[A]:
oxygen