PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Available for kids grades 2 through 7 as a series of $3 downloads, Brain Quest asks questions based on the grade level in a variety of subjects, including math, social studies, science, and language arts.
http://www.w3.org/ns/prov#wasQuotedFrom
  • macworld.com