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: You call the movement of a substance from an area of a higher amount toward an area of lower amount diffusion. Question: What do you call the movement of a substance from an area of a higher amount toward an area of lower amount?

SOLUTION: diffusion

PROBLEM: Sentence: Conifers are the most prevalent type of gymnosperms. Question: Conifers are the most prevalent type of what plant group?

SOLUTION: gymnosperms

PROBLEM: Sentence: Excretory system lets flatworms maintain a proper balance of water and salts. Question: What system lets flatworms maintain a proper balance of water and salts?

SOLUTION:
excretory