About: http://webisa.webdatacommons.org/419028232

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	It would help if you post your /etc/apt/sources.list, if there is an error reported in this file.
http://www.w3.org/ns/prov#wasQuotedFrom	linuxquestions.org