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: Carbonic acid can dissociate into hydrogen carbonate ions and protons. Question: Carbonic acid can dissociate into hydrogen carbonate ions and what?

Ex Output:
protons


Ex Input:
Sentence: Exotic species are also called invasive species because they threaten other species. Question: Why are exotic species also called invasive species?

Ex Output:
threaten other species


Ex Input:
Sentence: Stilt like roots helps mangrove trees rise high above the water. Question: Why do mangrove trees rise high above the water? which characteristic help them to do so?

Ex Output:

stilt like roots