About: http://webisa.webdatacommons.org/90091416

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	In this context, showing of teeth through smiles etc is a characteristic feature of human social interaction.
http://www.w3.org/ns/prov#wasQuotedFrom	science.gov