PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Musick and colleagues also found that the protective effects of volunteering were strongest among older men and women who had low levels of social interaction, seldom seeing or talking to anyone other than their spouses or the person with whom they lived.
http://www.w3.org/ns/prov#wasQuotedFrom
  • sciencedaily.com