About: http://webisa.webdatacommons.org/80186572

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	Research by Dr. Robert Provine suggest that laughter is a form of communication, probably the first one in the human race, which later evolved, with the liberation of voice from walking and breathing, into human language.
http://www.w3.org/ns/prov#wasQuotedFrom	crystalinks.com