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