Question: What killed Joseph von Fraunhafer, that has a death toll of 12000?
Paraphrase: What killed Joseph von Fraunhafer, that has a loss of life toll of 12000?
SPARQL (Wikidata): SELECT ?answer WHERE { wd:Q43948 wdt:P509 ?answer . ?answer wdt:P1603 ?x FILTER(contains(?x , '12000.0'))}