PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • For example, child development indicators have shown that poverty, family structure and other factors interact to produce different outcomes in different situations (Clark 1983; Guo Brooks-Gunn and Harris 1996; McLanahan and Sandefur 1994).
http://www.w3.org/ns/prov#wasQuotedFrom
  • census.gov