Question: Who is Stanislaw Grabowski's brother's son?
Paraphrase: Who is Stanislaw Grabowski's brother's son?
SPARQL (Wikidata): SELECT ?answer WHERE { wd:Q9341975 wdt:P3373 ?X . ?X wdt:P22 ?answer}
Answer: Stanisław August Poniatowski, Stanisław August Poniatowski, Stanisław August Poniatowski