SELECT DISTINCT ?uri WHERE { ?x <http://dbpedia.org/ontology/ethnicity> <http://dbpedia.org/resource/Bengalis> . ?x <http://dbpedia.org/ontology/party> ?uri . }
What is the political party of the Bengalis?
SELECT DISTINCT ?o WHERE { ?d property:party ?o . . ?d property:ethnicity resource:Bengalis }
answer
The political parties of the people whose ethnic group is Bengalis are [answer].
Bengali political parties are [answer]