PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • labels, such as org (organism), nnpg (protein/gene name), actv (activation verb), etc., using both hand-crafted dictionaries and gene name lists
http://www.w3.org/ns/prov#wasQuotedFrom
  • biomedcentral.com