PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • ???After decades of studies demonstrating that poor people and minorities are more likely than their white counterparts to live near health hazards such as toxic waste sites, landfills and congested highways, a new study in the journal PLOS One took a more refined look at a particular aspect in the area of ???environmental injustice???: exposure to nitrogen dioxide.
http://www.w3.org/ns/prov#wasQuotedFrom
  • nnlm.gov