Assertion: hair follicle's gland | /r/CapableOf | play role
Facets:
value: by keeping the hair
type: MANNER
Source sentences:
text: The sebaceous (oil) glands also play a role by keeping the hair lubricated and healthy.
text: The most common theory posits that an abnormal immune response is the culprit, though some researchers believe that the sebaceous gland may also play a role (15).