PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • BACKGROUND OF THE INVENTION [0002] Acne is an inflammatory disease of pilosebaceous glands in which, it is believed, blockage of the hair follicle leads to formation of comdones (i.e., blackheads or whiteheads), composed of sebum, keratin and microorganisms, notably Propionibacterium acnes (P. acnes).
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com