Question: Who are the relatives of the character after which Quagmire's Quagmire was made?
SPARQL query: SELECT DISTINCT ?uri WHERE { ?x <http://dbpedia.org/ontology/subsequentWork> <http://dbpedia.org/resource/Quagmire's_Quagmire> . ?uri <http://dbpedia.org/ontology/relative> ?x  . }
Answer: [Peter Griffin] is the character whose relative's subsequent work is Quagmire's Quagmire.