Question: What is the deathplace of people who have worked in Ethics?
SPARQL:
SELECT DISTINCT ?uri WHERE { ?x <http://dbpedia.org/property/mainInterests> <http://dbpedia.org/resource/Ethics> . ?x <http://dbpedia.org/property/placeOfDeath> ?uri  . ?x <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://dbpedia.org/ontology/Person>}