TASK DEFINITION: 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.
PROBLEM: Sentence: A solution forms when one substance dissolves into another. Question: What forms when one substance dissolves into another?

SOLUTION: solution

PROBLEM: Sentence: Acting like drawstrings to close off the alimentary canal, the sphincter regulates the passage of material between compartments. Question: Acting like drawstrings to close off the alimentary canal, what regulates the passage of material between compartments?

SOLUTION: sphincter

PROBLEM: Sentence: One gram of proteins provides four calories of energy. Question: One gram of proteins provides how many calories of energy?

SOLUTION:
four