About: http://webisa.webdatacommons.org/80378383

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	If it is the GUI that is freezing (happens quite frequently if due to display driver or other bugs), you might be able to access your guest OS through SSH or VRDP. Of course you must have these setup before the freeze occurred.
http://www.w3.org/ns/prov#wasQuotedFrom	superuser.com