About: http://webisa.webdatacommons.org/175082237

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	A garbage collector 532 is provided to collect and dispose of data and other information that becomes outdated, for example data that has a timestamp for latest use that corresponds to a time that has already passed.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com