Question: Who wrote the musical whose composer is Emil Dean Zoghby?
SPARQL:
SELECT DISTINCT ?uri WHERE { ?x <http://dbpedia.org/ontology/musicBy> <http://dbpedia.org/resource/Emil_Dean_Zoghby> . ?x <http://dbpedia.org/ontology/author> ?uri  . ?x <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://dbpedia.org/ontology/Musical>}