About: http://webisa.webdatacommons.org/211760753

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 requires key is a list that instructs Ext JS to fetch any required classes before our class is instantiated.
http://www.w3.org/ns/prov#wasQuotedFrom	sencha.com