DBpedia – Linked Data Fragments

DBpedia 2016-04

Query DBpedia 2016-04 by triple pattern

Matches in DBpedia 2016-04 for { ?s ?p "A challenge–response (or C/R) system is a type of spam filter that automatically sends a reply with a challenge to the (alleged) sender of an incoming e-mail. In this reply, the sender is asked to perform some action to assure delivery of the original message, which would otherwise not be delivered."@en }

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