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: Red-shift refers to a shift toward red in the spectrum from stars. Question: red-shift refers to a shift toward red in the spectrum from what celestial bodies?
answer:
stars


question:
Sentence: Sexual reproduction usually occur during times of environmental stress. Question: What type of reproduction usually occur during times of environmental stress?
answer:
sexual reproduction


question:
Sentence: An electric stove changes electric current to thermal form of energy. Question: An electric stove changes electric current to what form of energy?
answer:

thermal