Question: How many people are there whose children died in Indiana?
SPARQL:
SELECT DISTINCT COUNT(?uri) WHERE { ?x <http://dbpedia.org/ontology/deathPlace> <http://dbpedia.org/resource/Indiana> . ?uri <http://dbpedia.org/ontology/child> ?x  . ?uri <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://dbpedia.org/ontology/Person>}