About: http://webisa.webdatacommons.org/131905739

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	The problem with your example is the all browsers including IE will present the user agent Mozilla so in essence you would block I.E. as well.
http://www.w3.org/ns/prov#wasQuotedFrom	cisco.com