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.
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Question: Sentence: Weight is the force of gravity. Question: What is the force of gravity called?

Answer: weight


Question: Sentence: Instead of heat, organisms use catalysis to speed up reactions. Question: Instead of heat, organisms use what to speed up reactions?

Answer: catalysis


Question: Sentence: Most of the food that they bring to their chicks is very rich in lipids. Question: Most of the food that they bring to their chicks is very rich in what?

Answer:
lipids