Question: What are all the countires where food related to tuna salad is consumed?
SPARQL query:
PREFIX res: <http://dbpedia.org/resource/>
PREFIX prop: <http://dbpedia.org/property/>
PREFIX onto: <http://dbpedia.org/ontology/>
SELECT DISTINCT ?uri WHERE { ?x onto:related res:Tuna_salad . ?x prop:country ?uri . }