Assertion: chest congestion | /r/CreatedBy | the flu
Facets:
Source sentences:
text: If the chest congestion is caused by the flu, symptoms such as fever, chills, and body aches may occur.
text: If the chest congestion is caused by a flu, it may be accompanied by fever, chills, body aches and malaise.
text: Chest congestion can be caused by any number of ailments, chief among them the common cold and the flu.