About: http://webisa.webdatacommons.org/258890544

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	Permanent, safe disposal of toxic materials is an unsolved problem of the human race.
http://www.w3.org/ns/prov#wasQuotedFrom	ccnr.org