Assertion: cystic fibrosis's mucus | /r/CapableOf | accumulate in lung
Facets:
Source sentences:
text: The thick, sticky mucus accumulates in the lungs, plugging the bronchi and making breathing difficult.
text: In CF patients, thick, sticky mucus accumulates in the lungs and acts like a plug to blocks the air passages.
text: Thick mucus accumulates in the lungs, leading to breathing difficulty and infection.