PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • An essay is an opinion, so there are very few cases where I think would be necessary since saying Math is necessary and saying I think Math is necessary are both opinions when used in an essay, and taking out I think establishes confidence on the writer's stand point whereas saying I think makes essay writing weaker, if only slightly.
http://www.w3.org/ns/prov#wasQuotedFrom
  • usingenglish.com