Notation3

What it is Notation3 (N3) is a compact, non-XML serialization for RDF models designed for human readability. It also goes beyond RDF serialization by supporting RDF-based rules, while Turtle is described as its simplified RDF-only subset.

Key concepts

• N3 uses prefixes, compact subject/predicate repetition, QNames, blank-node shorthand, lists, and RDF paths.
• It adds quantification directives such as @forAll and @forSome, statement lists, and implication or equivalence operators that the page says Turtle and N-Triples lack.
• The documented filename extension is .n3, and the media type is text/n3;charset=utf-8.

How you’d use it Write RDF graphs in a more concise form than RDF/XML, using prefixes and punctuation to reduce repetition. Choose N3 rather than its Turtle subset when the model needs the additional rule, quantification, path, or statement-list features shown on the page.

LLM angle none stated

Pitfalls & lessons The page’s feature comparison is explicitly marked incomplete. N3 should not be treated as interchangeable with Turtle: the example is valid in both, but several N3 constructs listed on the page are not Turtle syntax.

Verdict A readable RDF notation with meaningful logic and rule extensions, useful when Turtle’s RDF-only scope is too narrow.

Sources consulted

• https://en.wikipedia.org/wiki/Notation3