Given scientific fact as input, generate the question from this fact such that it can be answered from the input.

Example Input: Gastro-esophageal sphincter sphincter is located at the stomach end of the esophagus and opens to allow the bolus to enter the stomach.
Example Output: Which sphincter is located at the stomach end of the esophagus and opens to allow the bolus to enter the stomach?

Example Input: The name of film that polyester fibers form is mylar.
Example Output: What is the name of film that polyester fibers form?

Example Input: Behaviors that are closely controlled by genes and have little to no environmental influence are called innate behaviors.
Example Output:
Behaviors that are closely controlled by genes and have little to no environmental influence are called what kinds of behaviors?