Question: What is the mascot of the unit whose garrison is Canberra ?
SPARQL:
SELECT DISTINCT ?uri WHERE { ?x <http://dbpedia.org/property/garrison> <http://dbpedia.org/resource/Canberra> . ?x <http://dbpedia.org/property/mascot> ?uri  . ?x <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://dbpedia.org/ontology/MilitaryUnit>}