SYNOPSIS

           # look up namespaces in several formats
           $ rdfns foaf.xmlns foaf.n3 dbpedia.sparql foaf.json

           # look up a prefixed URI
           $ rdfns rdfs:seeAlso

           # look up multiple URIs at a given version
           $ rdfns 20111102 foaf,owl.ttl

           # lookup preferred prefix
           $ rdfns http://www.w3.org/2003/01/geo/wgs84_pos#

           # create short name of an URL
           $ rdfns http://purl.org/dc/elements/1.1/title

           # map prefix to preferred prefix
           $ rdfns wgs.prefix

           # show all options and some examples
           $ rdfns --help

           # show version
           $ rdfns --version

           # list available dates
           $ rdfns --dates

FORMATS

       ttl, n3, notation3
           RDF/Turtle or Notation3 syntax:

               @prefix foaf: <http://xmlns.com/foaf/0.1/> .

       sparql
           SPARQL syntax:

               PREFIX foaf: <http://xmlns.com/foaf/0.1/>

       txt Tabulator-separated:

               foaf http://xmlns.com/foaf/0.1/

       xmlns
           XML namespace declaration

               xmlns:foaf="http://xmlns.com/foaf/0.1/"

       json
           JSON key-values, for instance for JSON-LD. Multiple entries are comma-separated.

               "foaf": "http://xmlns.com/foaf/0.1/"

       beacon
           BEACON format syntax:

               #PREFIX: http://xmlns.com/foaf/0.1/

       prefix
           Maps a prefix to its preferred form, this is the shortest and first in alphabetical
           order. For instance "rdfns wgs84.prefix" returns prefix "geo".

SEE ALSO

       This script is internally implemented in App::rdfns, based on RDF::NS.