Teacher: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.
Teacher: Now, understand the problem? Solve this instance: Sentence: Gastro-esophageal sphincter sphincter is located at the stomach end of the esophagus and opens to allow the bolus to enter the stomach. Question: Which sphincter is located at the stomach end of the esophagus and opens to allow the bolus to enter the stomach?
Student:
gastro-esophageal sphincter