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.
Example: Sentence: Having white fur trait would a cat most likely inherit from its parents. Question: Which trait would a cat most likely inherit from its parents?
Example solution: having white fur
Example explanation: The given output is correct as the answer provided is from the scientific fact stated

Problem: Sentence: During phase change, the temperature of a system remains constant. Question: What happens to the temperature of a system during phase change?

Solution: remains constant