About: http://webisa.webdatacommons.org/406544111

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	'They *762 may mark and set apart the classes and types of problems according to the needs and as dictated or suggested by experience.'
http://www.w3.org/ns/prov#wasQuotedFrom	brownat50.org