Turtle (Terse RDF Triple Language) is a serialisation format for RDF (Resource Description Framework) graphs. A subset of Tim Berners-Lee and Dan Connolly's Notation 3 (N3) language, it was defined by Dave Beckett , and is a superset of the minimal N-Triples format. Unlike full N3, Turtle doesn't go beyond RDF's graph model. The SPARQL Protocol and RDF Query Language uses a similar N3 subset to Turtle for its graph patterns, but using N3's braces syntax for delimiting subgraphs.