Assertion: psoriatic arthritis | /r/HasProperty | disease
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Source sentences:
text: There are several types of inflammatory arthritis, which include diseases that have multi-system organ involvement (including rheumatoid arthritis, systemic lupus erythematosus, Sjögren’s syndrome, and scleroderma), as well as disease that is just limited to the joints, ligaments and tendons (known as spondyloarthritis).