PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • With the advent of modern research, such psychologists as Robert Zajonc have made significant advances toward scientifically explaining how the physical act of smiling affects humans biologically, emotionally, and socially.
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  • goodrelaxation.com