PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Lab studies and modelling work suggest that, within decades, increased acidity will make it difficult for plankton, coral, mussels, oysters and other sea creatures to grow their calcium-based shells and skeletons.
http://www.w3.org/ns/prov#wasQuotedFrom
  • newscientist.com