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: Cardiac muscle kind of muscle cells undergo twitch-type contractions with long refractory periods followed by brief relaxation periods, allowing the heart to fill with blood for the next cycle. Question: What kind of muscle cells undergo twitch-type contractions with long refractory periods followed by brief relaxation periods, allowing the heart to fill with blood for the next cycle?

Ex Output:
cardiac muscle


Ex Input:
Sentence: No reaction happens when alkanes are mixed with oxygen at room temperature. Question: What happens when alkanes are mixed with oxygen at room temperature?

Ex Output:
no reaction


Ex Input:
Sentence: Superconductors are materials with a resistivity of zero. Question: Superconductors are materials with a resistivity of?

Ex Output:

zero