query: SELECT ?l ?lemma ?form ?ipa WHERE {
     ?l a ontolex:LexicalEntry ; dct:language ?language ;
          wikibase:lemma ?lemma ; ontolex:lexicalForm ?form.
    ?language wdt:P218 'pl'.
    ?form p:P898 ?statement.
    ?statement ps:P898 ?ipa.
    FILTER NOT EXISTS {
      ?statement prov:wasDerivedFrom ?refnode.
      ?refnode pr:P143 wd:Q33109097.
    }
  } ORDER BY ?lemma