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: The term ecological succession refers to the sequence of community and ecosystem changes after a disturbance. Question: What term refers to the sequence of community and ecosystem changes after a disturbance?
[A]: ecological succession


[Q]: Sentence: There are four many visual clues to indicate a chemical reaction. Question: There are how many visual clues to indicate a chemical reaction?
[A]: four


[Q]: Sentence: You call a device that produces a very focused beam of visible light of just one wavelength and color a laser. Question: What do you call a device that produces a very focused beam of visible light of just one wavelength and color?
[A]:
laser