Assertion: viral pneumonia's symptom | /r/HasProperty | breathing
Facets:
Source sentences:
text: Symptoms included fever, pneumonia, and difficulty breathing, but the exact cause of the disease remains unknown.
text: The symptoms of pneumonia can range from mild to severe, and include cough, fever, chills, and trouble breathing.
text: Symptoms can be mild or severe and may include a cough with phlegm (a slimy substance), fever, chills, and trouble breathing.