About: http://webisa.webdatacommons.org/283841970

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	The number and types of questions have varied over the years, to suit the times and purposes of collection.
http://www.w3.org/ns/prov#wasQuotedFrom	pearltrees.com