Assertion: vacuum's bag | /r/HasAspect | hepa filters
Facets:
value: usually
type: TEMPORAL
Source sentences:
text: Bagged uprights usually have HEPA filters to keep the dust and pollen to a minimum; however, the bag needs replacing periodically.
text: Bagged uprights usually have HEPA filters to keep the dust and pollen to a minimum; however, the bag needs replacing periodically.