Question: What residence of L.L. Zamenhof has a surface area of 517.24?
Paraphrase: What house of L.L. Zamenhof has a floor place of 517.24?
SPARQL (Wikidata): SELECT ?answer WHERE { wd:Q11758 wdt:P551 ?answer . ?answer wdt:P2046 ?x FILTER(contains(?x , '517.24'))}
Answer: Warsaw