Given a statement and question, generate the answer to the question such that the answer is contained in the statement.

Q: statement: premature births are less likely to live long, question: What type of births are less likely to live long?

A: premature births
****
Q: statement: caffeine is an addictive substance, question: What is an addictive substance?

A: caffeine
****
Q: statement: Green plants are also known as producers, question: What are green plants also known as?

A:
producers
****