instruction:
Given a statement and question, generate the answer to the question such that the answer is contained in the statement.
question:
statement: Thrinaxodon is from the animal family that eventually changed into mammals., question: What did Thrinaxodon become?
answer:
mammals


question:
statement: simple green plants play significant roles as producers in water ecosystems, question: What ecosystems do green plants play a significant role in?
answer:
water ecosystems


question:
statement: microorganisms may spread directly from one human to another, question: What may spread directly from one human to another?
answer:

microorganisms