Assertion: albinism's pigmentation | /r/HasProperty | decreased
Facets:
value: due to deficiency of melanin
type: CAUSE
Source sentences:
text: Albinism is a genetically heterogeneous congenital disorder characterized by decreased or absent pigmentation in the hair, skin, and eyes.
text: Due to deficiency of melanin, the pigmentation of the iris, as well as retina is decreased.