Assertion: esophagus's layer | /r/HasProperty | skeletal muscle
Facets:
value: in the third of the esophagus
type: LOCATION
Source sentences:
text: In the third of the esophagus that is closed to the mouth, the external layer is composed of skeletal muscle, the middle third contains a mixture of smooth and skeletal muscle, and the third closest to the stomach contains only smooth muscle.