PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Beside, writing Task 1 measures your ability to describe a graph regardless of what does it contains, so you should enhance your describing skills by practising on different types of graph.
http://www.w3.org/ns/prov#wasQuotedFrom
  • ielts-simon.com