PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • While it???s long been known that human attention is a scarce resource ??? focusing in the morning makes it harder to focus in the afternoon ??? Kaplan hypothesized that immersion in nature might have a restorative effect.
http://www.w3.org/ns/prov#wasQuotedFrom
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