What is the headquarters of the public transit system which is the system of Bottineau LRT ?
SELECT DISTINCT ?uri WHERE { <http://dbpedia.org/resource/Bottineau_LRT> <http://dbpedia.org/property/system> ?x . ?x <http://dbpedia.org/property/headquarters> ?uri  . ?x <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://dbpedia.org/ontology/PublicTransitSystem>}
Bottineau_LRT