Assertion: psoriasis's condition | /r/Causes | swelling
Facets:
Source sentences:
text: Psoriatic arthritis, a condition that causes joint pain and swelling.
text: About one out of 10 people with psoriasis gets psoriatic arthritis (so-ree-AT-ik ar-THRY-tis), a condition that causes pain, swelling, and stiffness of the joints (the places where bones meet).