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.

[Q]: Sentence: The epidermis of a leaf contains openings known as stomata, through which the exchange of gases takes place. Question: Which part of a leaf contains openings known as stomata, through which the exchange of gases takes place?
[A]: epidermis


[Q]: Sentence: Iceland sits on the mid-atlantic ridge. Question: On which ridge does iceland sit?
[A]: mid-atlantic ridge


[Q]: Sentence: One gram of sugar or starch provides 4 calories of energy. Question: How many calories of energy does one gram of sugar or starch provide?
[A]:
4