Assertion: lupus's symptom | /r/HasProperty | vague
Facets:
Source sentences:
text: Lupus is a difficult disease to diagnose, because its symptoms can be vague.
text: What is lupus” is a more difficult question than you might think to answer for both doctors and patients, since the symptoms tend to be vague and mimic other illnesses; however, inflammation always plays a role.
text: Its vague symptoms are also why lupus is sometimes called “the great imitator.