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.
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Question: Sentence: Liquid nitrogen is used for cooling detectors of infrared telescopes. Question: What is used for cooling detectors of infrared telescopes?

Answer: liquid nitrogen


Question: Sentence: Blood enters the heart in atria valve. Question: Blood enters the heart in what valve?

Answer: atria


Question: Sentence: Eight valence electrons do most of the noble gas elements have in common. Question: What do most of the noble gas elements have in common?

Answer:
eight valence electrons