Triples

Triples are tertiary (three-way) relationships between objects.

Specifications

• N-Triples: http://www.w3.org/TR/n-triples/ (n-triples)
• Notation-3 Logic: http://www.w3.org/DesignIssues/Notation3 (n3)
• Terse RDF Triple Language (Turtle): http://www.w3.org/TeamSubmission/turtle/ (turtle = n-triples + n3 + sparql)

EXAMPLE

A simple example of a triple is the following English sentence:

Bryan is a person.

The triple representation of this is nearly identical:

Bryan isA person

• Bryan tells us the name of the subject, namely that the subject's name is Bryan

• isA tells us the type of relationship (predicate), using simple present form of the English verb "to be"

• person tells us the type of object we're referring to when speaking about the subject, i.e. qualifying Bryan's membership in the "human race"

Triples are at the core of RDF and a number of other efforts behind the Semantic Web.

Triple Stores

See: Triple-store

Tools

• Any23: http://any23.org | Any23 Developers

Resources

• Triple viewer:

Tutorials

• Thinking XML - Introducing N-Triples: http://www.ibm.com/developerworks/library/x-think17/

External Links

• wikipedia: Triplestore

See Also

Triple-store | n3 | RDF