Given a statement and question, generate the answer to the question such that the answer is contained in the statement.
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Question: statement: Homo sapiens are placental., question: Homo sapiens are what?

Answer: placental


Question: statement: arithmetic can be done online, question: How can arithmetic be done?

Answer: online


Question: statement: hornworts occupy niches in wet habitats, question: What occupy niches in wet habitats?

Answer:
hornworts