Question: How are Stanisław August Poniatowski and Józef Poniatowski related?
Paraphrase: Jozef Poniatowski and Stanislaw August Poniatowski are related how?
SPARQL (Wikidata): SELECT ?value WHERE { wd:Q54019 p:P1038 ?s . ?s ps:P1038 wd:Q154382 . ?s pq:P1039 ?value}