About: http://webisa.webdatacommons.org/191581229

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	Scientists have long speculated about the purpose of such expressions as frowning or smiling.
http://www.w3.org/ns/prov#wasQuotedFrom	harvard.edu