Assertion: esophagus | /r/CapableOf | begin at the back of the mouth
Facets:
Source sentences:
text: It begins at the back of the mouth, passing downwards through the rear part of the mediastinum, through the diaphragm, and into the stomach.
text: The esophagus begins in the back of the mouth.
text: The esophagus is a hollow tube that begins at the back of the mouth at around the sixth cervical vertebrae.