PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Hauer provides information on how to conduct and interpret observational before-after studies.(13) He notes that the use of the comparison group method is deceptively similar to that of randomized experiments, which are popular in agriculture, medicine, and other fields of research.
http://www.w3.org/ns/prov#wasQuotedFrom
  • dot.gov