Assertion: skin's gland | /r/CapableOf | produce oily substance
Facets:
Source sentences:
text: To help protect the outer layer of skin from losing water, the skin's sebaceous glands produce an oily substance called sebum.
text: Connected to the hair follicle, these glands produce an oily substance, called sebum, that keeps your skin and hair lubricated.
text: Connected to the hair follicle, these glands produce an oily substance, called sebum, that keeps your skin and hair lubricated.