PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Researchers from the Radiation Sciences Branch taught the students how to determine the types of clouds above their school, the clouds' altitudes and how much of the sky is covered by clouds at the time of their observation.
http://www.w3.org/ns/prov#wasQuotedFrom
  • nasa.gov