Assertion: lupus's cause | /r/CapableOf | remain unclear
Facets:
Source sentences:
text: The cause remains unclear, and there is currently no cure, but some therapies can help to relieve symptoms, and lifestyle measure can improve a person’s quality of life.
text: The exact cause of lupus remains unclear.
text: The exact causes of systemic lupus erythematosus (SLE) remain unclear.