Assertion: duct | /r/HasProperty | dirty
Facets:
value: because of insects
type: CAUSE
value: because of rodents
type: CAUSE
value: very
type: DEGREE
Source sentences:
text: Even if your ducts are very dirty, cleaning them likely won’t provide any measurable benefits.
text: For instance, if your ducts are dirty because of rodents or insects, the duct cleaning service will only clean the current mess.