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Saturday, February 2, 2008

W3C Team Submission on N3 and Turtle

As provided in the W3C Process Document, the W3C Team may request that
the Director publish information at the W3C Web site. At the Director's
discretion, these documents are published as "Team Submissions". These
documents are analogous to Member Submissions (e.g., in expected scope).
However, Team Submissions are not part of the Recommendation Track
process, and there is no additional Team comment. W3C recently announced
the release of new versions of the RDF N3 and the RDF Turtle
serialization formats, co-authored by Tim Berners-Lee and Dan Connolly
for the former, and David Beckett and Tim Berners-Lee for the latter.
The new versions also eliminate some minor incompatibilities between
these languages and the SPARQL pattern language. The authors have also
submitted the 'text/n3' and 'text/turtle' media types to IETF.
"Turtle: Terse RDF Triple Language" defines a textual syntax for RDF
called 'Turtle' that allows RDF graphs to be completely written in a
compact and natural text form, with abbreviations for common usage
patterns and datatypes. Turtle provides levels of compatibility with
the existing N-Triples and Notation 3 formats as well as the triple
pattern syntax of the SPARQL Recommendation. The "Notation3 (N3): A
Readable RDF Syntax" specification defines Notation 3 (also known as N3),
an assertion and logic language which is a superset of RDF. N3 extends
the RDF datamodel by adding formulae (literals which are graphs
themselves), variables, logical implication, and functional predicates,
as well as providing an textual syntax alternative to RDF/XML.

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