PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Children will learn how soil and sand are formed, the importance of soil, soil erosion and pollution concerns, and the types of sand and soil.
http://www.w3.org/ns/prov#wasQuotedFrom
  • amazon.co.uk