Assertion: tube | /r/CapableOf | provide ventilation
Facets:
value: during healing
type: TEMPORAL
value: for the middle ear
type: TRANSITIVE-OBJECT
Source sentences:
text: a tube inserted afterin chronic cases of middle ear effusion, such as in secretory or mucoid otitis media; it provides ventilation and drainage for the middle ear during healing, and is eventually extruded.