Assertion: psoriasis | /r/CapableOf | raise patches of skin
Facets:
value: on knees
type: LOCATION
value: on elbows
type: LOCATION
value: on the scalp
type: LOCATION
Source sentences:
text: Psoriasis usually starts as one or more small psoriatic plaques – dark-pink, raised patches of skin with overlying silvery flaky scales – usually on the scalp, knees, elbows, back and buttocks.