The first shortcut notation lets one write long rif:iri constants in the form prefix:name, where prefix is a short name that expands into an IRI according to a suitable Prefix directive. For instance, ex:boy would expand into the rif:iri constant ""^^rif:iri, if ex is defined as in the Prefix(old boyfriend . ) directive below. The second shortcut notation uses angle brackets as a way to shorten the ". "^^rif:iri idiom. For instance, the prevous rif:iri constant can be alternatively represented as < The last shortcut notation lets one write rif:iri constants using IRIs relative to a base, where the base IRI is specified in a directive. Leggi il resto di questo articolo »