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 distinctive appearance of cartilage tissue is due to polysaccharides called chondroitin sulfates. Question: The distinctive appearance of what tissue is due to polysaccharides called chondroitin sulfates?

Ex Output:
cartilage


Ex Input:
Sentence: Contributing to the blood-brain barrier is one of the jobs of glial cells, central nervous system support neurons in what system. Question: Contributing to the blood-brain barrier is one of the jobs of glial cells, which support neurons in what system?

Ex Output:

central nervous system