PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The problem is compounded by many of the scarcer elements being a small cog in a large wheel, so while materials such as aluminium, steel and many plastics can be and are recycled, recovering the small amounts of indium from broken touch screens is neither feasible nor cost effective.
http://www.w3.org/ns/prov#wasQuotedFrom
  • blogspot.com