@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
@prefix dc: <http://purl.org/dc/terms/> .
@prefix skos: <http://www.w3.org/2004/02/skos/core#> .

<http://codes.wmo.int/wmdr/unit/psu>
  rdfs:label "practical salinity unit" ;
  dc:description "'close to 1"@en ;
  skos:prefLabel "practical salinity unit"@en ;
  skos:notation "psu" ;
  a skos:Concept .

<http://codes.wmo.int/wmdr/unit>
  a <http://www.w3.org/ns/ldp#Container>, <http://purl.org/linked-data/registry#Register>, skos:Collection ;
  skos:prefLabel "Measurement unit"@en ;
  skos:member <http://codes.wmo.int/wmdr/unit/psu> .