Assertion: tympanostomy tube | /r/HasProperty | inserted into the eardrum
Facets:
value: in order to keep the middle ear
type: PURPOSE
Source sentences:
text: Tympanostomy tube, also known as a grommet or myringotomy tube, is a small tube inserted into the eardrum in order to keep the middle ear aerated for a prolonged period of time, and to prevent the accumulation of fluid in the middle ear.