Question: Tell me the total number of organizations who maintain the bridges made by the malaysian PWD?
SPARQL:
SELECT DISTINCT COUNT(?uri) WHERE { ?x <http://dbpedia.org/property/designer> <http://dbpedia.org/resource/Malaysian_Public_Works_Department> . ?x <http://dbpedia.org/ontology/maintainedBy> ?uri  . ?uri <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://dbpedia.org/ontology/Organisation>}