PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • However, more research is needed to examine potential long-term effects, particularly for children and adolescents.Researchers have also investigated a number of metals and chemicals including vinyl chloride, petroleum products, lead, arsenic, mercury, and pesticides.
http://www.w3.org/ns/prov#wasQuotedFrom
  • mch.com