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: The cardiovascular system in the human body consists of the heart, a network of blood vessels, and blood. Question: Which system in the human body consists of the heart, a network of blood vessels, and blood?
answer:
cardiovascular system

question:
Sentence: Animals produce most of enzymes chemicals, which are needed to synthesize the fatty acids they need. Question: Animals produce most of what chemicals, which are needed to synthesize the fatty acids they need?
answer:
enzymes

question:
Sentence: Human facial expressions can communicate emotions. Question: What can human facial expressions communicate?
answer:
emotions