Assertion: renal vein's tributary | /r/HasProperty | buccinator
Facets:
Source sentences:
text: The first tributaries of the facial vein include the supratrochlear, supraorbital, and superior ophthalmic veins (which drain the forehead and orbit); other tributaries include the nasal, deep facial, inferior palpebral, superior and inferior labial, buccinator, parotid, and masseteric veins.