Question: Give me the total number of lines owned by owner of Metro-Noth Railroad ?
SPARQL query: SELECT DISTINCT COUNT(?uri) WHERE { ?x <http://dbpedia.org/ontology/owner> <http://dbpedia.org/resource/Metro-North_Railroad> . ?x <http://dbpedia.org/property/owner> ?uri }
Answer: There are [17] owners of the railway lines which are also owned by Metro-North Railroad.