TASK DEFINITION: Write a correct answer to the given question based on its associated fact. Make sure that your answer is contained in the associated fact. Don't be creative and introduce any new word that is not mentioned in the associated fact! Remember that the associated fact has been rearranged to form the question. So, the correct answer words must lie within the associated fact. The correct answer can be a word, phrase, or even a sentence.
PROBLEM: Fact: penguins are endothermic tetrapod vertebrates. 
Question: what are endothermic tetrapod vertebrates?

SOLUTION: penguins.

PROBLEM: Fact: Absorbing energy causes metal objects to expand. 
Question: Metal expands when it does what?

SOLUTION: absorbs energy.

PROBLEM: Fact: Bird eggs' shells and antacids are made of the same material. 
Question: Bird egg shells are made of the same thing as what?

SOLUTION:
Antacids.