Question: Twin cities 400 is operated by what city, which is the birthplace of Leona Baumgarter?
SPARQL:
 SELECT DISTINCT ?uri WHERE { <http://dbpedia.org/resource/Twin_Cities_400> <http://dbpedia.org/ontology/operatedBy> ?uri. <http://dbpedia.org/resource/Leona_Baumgartner> <http://dbpedia.org/ontology/birthPlace> ?uri}