List education institute of the engineers whose alma mater is ChristChurch ?
SELECT DISTINCT ?uri WHERE { ?x <http://dbpedia.org/ontology/education> <http://dbpedia.org/resource/Christchurch> . ?x <http://dbpedia.org/ontology/education> ?uri  . ?x <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://dbpedia.org/ontology/Engineer>}
Christchurch