About: http://webisa.webdatacommons.org/439820487

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	You could spend a bunch of time trying to repair this, your best bet is to just reinstall over your existing installation and doublechecking that you do not format the partition.
http://www.w3.org/ns/prov#wasQuotedFrom	askubuntu.com