PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • When sebum cannot be properly secreted from the sebum glands on the face, it begins to build up, particularly because puberty stimulates extra sebum and bacteria feeds off of it, creating a vicious cycle of irritation, infection, and visible sores that can result in serious scarring.
http://www.w3.org/ns/prov#wasQuotedFrom
  • organicfacts.net