PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • To help with this, we have recently reorganized and updated our alt text standards to include information about the many different types of alt text and the guidelines for writing them.
http://www.w3.org/ns/prov#wasQuotedFrom
  • energy.gov