query: select ?lexemeId ?lemma ?nomSing ?nomPlur ?acuSing ?acuPlur WHERE {
    ?lexemeId <http://purl.org/dc/terms/language> wd:Q143;
              wikibase:lexicalCategory wd:Q1084;
              wikibase:lemma ?lemma.
    # Nominativo singular
    MINUS{
    ?lexemeId ontolex:lexicalForm ?form1 .
    ?form1 wikibase:grammaticalFeature wd:Q110786;
           wikibase:grammaticalFeature wd:Q131105;
           ontolex:representation ?nomSing .
    # Nominativo plural
    ?lexemeId ontolex:lexicalForm ?form2 .
    ?form2 wikibase:grammaticalFeature wd:Q146786;
           wikibase:grammaticalFeature wd:Q131105;
           ontolex:representation ?nomPlur .
    # Acusativo singular
    ?lexemeId ontolex:lexicalForm ?form3 .
    ?form3 wikibase:grammaticalFeature wd:Q110786;
           wikibase:grammaticalFeature wd:Q146078;
           ontolex:representation ?acuSing .
    # Acusativo plural
    ?lexemeId ontolex:lexicalForm ?form4 .
    ?form4 wikibase:grammaticalFeature wd:Q146786;
           wikibase:grammaticalFeature wd:Q146078;
           ontolex:representation ?acuPlur .
      }
  }