instruction:
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.
question:
Sentence: Age causes reduction of elasticity in all organs. Question: What causes reduction of elasticity in all organs?
answer:
age


question:
Sentence: In weather terms, the boundary between two air masses is called front. Question: In weather terms, what do you call the boundary between two air masses?
answer:
front


question:
Sentence: One gram of carbohydrates provides four calories of energy. Question: One gram of carbohydrates provides how many calories of energy?
answer:

four