what is the {located in the administrative territorial entity} for {Rideau Canal} has {mouth of the watercourse} as {Ottawa River} ?
In what area does the Rideau Canal join the Ottawa River?
SELECT ?value WHERE { wd:Q651323 p:P403 ?s . ?s ps:P403 wd:Q60974 . ?s pq:P131 ?value}
select distinct ?value  where {
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q651323> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P403> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> <http://wikidata.dbpedia.org/resource/Q60974> .
?statement <http://www.wikidata.org/entity/P131> ?value. 
} 

In which region does the Rideau Canal join the Ottawa River?