PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • <br />EM was left out just because results for it are always similar to B, and fewer people use the EM tag so our data for it is less precise than for B. I have sort of assumed the small difference between them I see I just error, and that google is likely merging them together in their algo.
http://www.w3.org/ns/prov#wasQuotedFrom
  • moz.com