PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Pick up some problems ( you can find them mostly in textbooks, and if you give us your level and your field(s) we may suggest you some names ), and try to solve them alone.
http://www.w3.org/ns/prov#wasQuotedFrom
  • stackexchange.com