Question: In which common territory did Sino French war and the Tonkin campaign take place?
SPARQL query: SELECT DISTINCT ?uri WHERE { <http://dbpedia.org/resource/Sino-French_War> <http://dbpedia.org/ontology/territory> ?uri. <http://dbpedia.org/resource/Tonkin_Campaign> <http://dbpedia.org/ontology/territory> ?uri . }
Answer: The common territories of Sino-French war and Tonkin Campaign are [Tonkin, Annam (French protectorate)].