Question: What type of relationship did the siblings Carl Philipp Emanuel Bach and Wilhelm Friedemann Bach have?
Paraphrase: Describe the sibling relationship of Carl Phillip Emannuel Bach and Wilhelm Friedemann?
SPARQL (Wikidata): SELECT ?value WHERE { wd:Q76428 p:P3373 ?s . ?s ps:P3373 wd:Q107277 . ?s pq:P1039 ?value}