Assertion: mediastinum's artery | /r/HasProperty | all of the organs
Facets:
value: essentially
type: DEGREE
Source sentences:
text: Mediastinum is the area in the chest between the lungs that contains the heart, part of the windpipe (the trachea), the esophagus, and the great vessels including the ascending aorta and right and left pulmonary arteries essentially all of the organs in the chest except the lungs.