TASK DEFINITION: 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.
PROBLEM: Sentence: Chemical energy is stored in the atom bonds. Question: Where is chemical energy stored?

SOLUTION: atom bonds

PROBLEM: Sentence: Earthquakes mark the motions of colliding plates and the locations where plates plunge into the mantle. Question: Earthquakes mark the motions of colliding plates and the locations where plates plunge into what?

SOLUTION: the mantle

PROBLEM: Sentence: A heterocyclic compound contains atoms of two or more different elements in its ring structure. Question: What type of compound contains atoms of two or more different elements in its ring structure?

SOLUTION:
heterocyclic