Question: Name a writer who was educated in Saint Petersburg and had a son named Lyubov Dostoyevskaya ?
SPARQL:
SELECT DISTINCT ?uri WHERE {?uri <http://dbpedia.org/ontology/education> <http://dbpedia.org/resource/Saint_Petersburg> . ?uri <http://dbpedia.org/ontology/child> <http://dbpedia.org/resource/Lyubov_Dostoyevskaya>  . ?uri <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://dbpedia.org/ontology/Writer>}