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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	Not sure if you can block articles but you can certainly subscribe to them, for example any readers out there who are interested can specifically subscribe to my MUO articles with my feed..
http://www.w3.org/ns/prov#wasQuotedFrom	makeuseof.com