TriG (syntax)

TriG

Filename extension	.trig
Internet media type	application/trig
Developed by	Freie Universität Berlin
Type of format	semantic web
Container for	RDF data
Extended from	Turtle
Extended to	TriG
Standard(s)	Specification

TriG is a serialization format for RDF (Resource Description Framework) graphs. It is a plain text format for serializing Named Graphs and RDF Datasets which offers a compact and readable alternative to the XML-based TriX syntax.

Example

This example encodes three interlinked named graphs:

• http://www.example.org/exampleDocument#G1
• http://www.example.org/exampleDocument#G2
• http://www.example.org/exampleDocument#G3

@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .
@prefix swp: <http://www.w3.org/2004/03/trix/swp-1/> .
@prefix dc: <http://purl.org/dc/elements/1.1/> .
@prefix ex: <http://www.example.org/vocabulary#> .
@prefix : <http://www.example.org/exampleDocument#> .

:G1 { :Monica ex:name "Monica Murphy" .      
      :Monica ex:homepage <http://www.monicamurphy.org> .
      :Monica ex:email <mailto:monica@monicamurphy.org> .
      :Monica ex:hasSkill ex:Management }

:G2 { :Monica rdf:type ex:Person .
      :Monica ex:hasSkill ex:Programming }

:G3 { :G1 swp:assertedBy _:w1 .
      _:w1 swp:authority :Chris .
      _:w1 dc:date "2003-10-02"^^xsd:date .   
      :G2 swp:quotedBy _:w2 .
      :G3 swp:assertedBy _:w2 .
      _:w2 dc:date "2003-09-03"^^xsd:date .
      _:w2 swp:authority :Chris .
      :Chris rdf:type ex:Person .
      :Chris ex:email <mailto:chris@bizer.de> }

External links

• TriG Specification (2007)
• Work-in-progress W3C specification (2013)
• Yacker TriG validator, which does not handle sub-graphs, and does not validate the above example.
• Another TriG validator, which does validate the above example.