PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Calisthenics (heavy, e.g. pushups) - 45 minutes, Bicycling (very fast) - 17.5/mph - 45 minutes, Sleeping - 6 hours, Resting - 10 hours and 30 minutes, Sitting - 6 hours. more...
http://www.w3.org/ns/prov#wasQuotedFrom
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