Question: In which states does the river flow whose left tributary is Toms Creek?
SPARQL query: SELECT DISTINCT ?uri WHERE { <http://dbpedia.org/resource/Toms_Creek_(Monocacy_River)> <http://dbpedia.org/ontology/leftTributary> ?x . ?x <http://dbpedia.org/ontology/state> ?uri  . }
Answer: The states of the left tributary of Toms Creek river are [Maryland, Pennsylvania].