Assertion: cough | /r/CreatedBy | virus
Facets:
Source sentences:
text: You can’t prevent a cough caused by a virus (cold or flu).
text: Antibiotics do not usually ease a cough caused by a virus.
text: Most coughs are caused by viruses that inflame the throat, windpipe or lungs.
text: Most coughs are caused by viruses and have to just run their course.