Assertion: esophagus's sphincter | /r/CapableOf | open for the purpose
Facets:
Source sentences:
text: At the inferior end of the esophagus, the lower esophageal sphincter opens for the purpose of permitting food to pass from the esophagus into the stomach.
text: At the inferior end of the esophagus, the lower esophageal sphincter opens for the purpose of permitting food to pass from the esophagus into the stomach.