Question: What is the name of the characters created by Frank Miller?
SPARQL query:
PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>
PREFIX prop: <http://dbpedia.org/property/>
PREFIX onto: <http://dbpedia.org/ontology/>
SELECT DISTINCT ?uri WHERE { ?x prop:creators <http://dbpedia.org/resource/Frank_Miller_(comics)> . ?x prop:characterName ?uri . ?x rdf:type onto:FictionalCharacter}