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: Which sphincter is located at the stomach end of the esophagus and opens to allow the bolus to enter the stomach? Answer: gastro-esophageal sphincter

SOLUTION: Gastro-esophageal sphincter sphincter is located at the stomach end of the esophagus and opens to allow the bolus to enter the stomach.

PROBLEM: Question: What is the amount of product that may be produced by a reaction under specified conditions called? Answer: theoretical yield

SOLUTION: The amount of product that may be produced by a reaction under specified conditions is called theoretical yield.

PROBLEM: Question: Examples of organ systems in a human include the skeletal, nervous, and what? Answer: reproductive systems

SOLUTION:
Examples of organ systems in a human include the skeletal, nervous, and reproductive systems.