TASK DEFINITION: In this task, you are given a question and an answer, you would be asked to create the sentence based on the Question-Answer provided. It should be contained within the Question-Answer provided.
PROBLEM: Question: What signals the secretion of gastric acid? Answer: gastrin

SOLUTION: Gastrin signals the secretion of gastric acid.

PROBLEM: Question: Where does chemical digestion mainly occur? Answer: small intestine

SOLUTION: Chemical digestion mainly occurs in the small intestine.

PROBLEM: Question: At least 20 percent of the world’s people do not have a ready supply of what? Answer: clean drinking water

SOLUTION:
At least 20 percent of the world’s people do not have a ready supply of clean drinking water.