Assertion: psoriasis's system | /r/CapableOf | attack joint
Facets:
Source sentences:
text: However, while lupus may cause the immune system to attack multiple parts of the body, including the skin, joints, and organs, psoriasis is typically limited to the skin, fingernails, and toenails.
text: PsA is an autoimmune disease, occuring when the immune system attacks the joints and also tendons.