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: 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: The potential of galvanic cell can be used to measure the ph of a solution. Question: The potential of what can be used to measure the ph of a solution?

Ex Output:
galvanic cell


Ex Input:
Sentence: Continually increasing the pressure on the liquid will eventually cause the substance to solidify. Question: Continually increasing the pressure on the liquid will eventually cause the substance to do what?

Ex Output:

solidify