query: SELECT ?l ?lemma ?posLabel (COUNT(?form) AS ?formcount ) WHERE {
     ?l a ontolex:LexicalEntry ; dct:language ?language ;
          wikibase:lemma ?lemma ;
          wikibase:lexicalCategory ?pos.
    ?language wdt:P218 'sv'.
              ?l ontolex:lexicalForm ?form 
    SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en". }
  }
  GROUP BY ?l ?lemma ?posLabel
  HAVING (?formcount = 1)
  ORDER BY ?posLabel