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.

Ex Input:
Sentence: The name of positive ion ion always comes first. Question: The name of which ion always comes first?

Ex Output:
positive ion


Ex Input:
Sentence: Interstitial carbides are produced by the reaction of most transition metals at high temperatures with carbon element. Question: Interstitial carbides are produced by the reaction of most transition metals at high temperatures with what element?

Ex Output:
carbon


Ex Input:
Sentence: Atp or adenozine triphosphate is used for most energy functions in organisms. Question: What molecule is used for most energy functions in organisms?

Ex Output:

atp or adenozine triphosphate