Question: List all the parents of writers coming from the Great Missenden ?
SPARQL:
SELECT DISTINCT ?uri WHERE { ?x <http://dbpedia.org/property/homeTown> <http://dbpedia.org/resource/Great_Missenden> . ?x <http://dbpedia.org/ontology/parent> ?uri  . ?x <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://dbpedia.org/ontology/Writer>}