Question: What railway lines go through the stations maintained by Western Australian Public Transport Authority?
SPARQL query:
PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>
PREFIX onto: <http://dbpedia.org/ontology/>
SELECT DISTINCT ?uri WHERE { ?x onto:owningOrganisation <http://dbpedia.org/resource/Public_Transport_Authority_(Western_Australia)> . ?x onto:servingRailwayLine ?uri  . ?x rdf:type onto:Station}