PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Endosperm, in the form of corn, rice, wheat and other crops, is critical to humans, providing about 70 percent of calories we consume annually worldwide. ???The tissue in the seeds of flowering plants is what feeds the world,??? said Friedman, who also directs the Arnold Arboretum at Harvard. ???If flowering plants weren't here, humans would not be here.???
http://www.w3.org/ns/prov#wasQuotedFrom
  • world-science.net