Assertion: mediastinum's nerve | /r/HasProperty | major
Facets:
Source sentences:
text: It contains the heart and its major blood vessels, the esophagus, thymus, trachea, lymph nodes and major nerves.
text: The paired vagus nerves and the paired sympathetic chains are the major nervous system organs present in the chest cavity.
text: It includes the heart, esophagus, trachea, major nerves, and major systemic blood vessels.