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.

Example 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?
Example Output: cartilage

Example Input: Sentence: Toxins is contained in the skin of brightly colored poison dart frogs. Question: What is contained in the skin of brightly colored poison dart frogs?
Example Output: toxins

Example Input: Sentence: When the helium is gone, the stars become white dwarfs. Question: When the helium is gone, the stars become what?
Example Output:
white dwarfs