Assertion: cystic fibrosis's symptom | /r/CapableOf | clog lung
Facets:
Source sentences:
text: Lung/Breathing symptoms are due to the thick, sticky mucus clogging the lungs: Wheezing Difficulty breathing Repeated lung infections
text: The chief symptom of cystic fibrosis is a thick, sticky mucus clogging the lungs and airways, creating breathing difficulties, high susceptibility to infection and lung damage.