Question: Who is the child of Frederick William I of Prussia and when did he die?
Paraphrase: What is the name and death date of the child of Frederick William I of Prussia?
SPARQL (Wikidata): SELECT ?value1 ?obj WHERE { wd:Q105013 p:P40 ?s . ?s ps:P40 ?obj . ?s pq:P570 ?value1 . }