Question: Purnima Banerjee and Rishang Keishing are politicians of what party ?
SPARQL:
 SELECT DISTINCT ?uri WHERE { <http://dbpedia.org/resource/Rishang_Keishing> <http://dbpedia.org/property/party> ?uri. <http://dbpedia.org/resource/Purnima_Banerjee> <http://dbpedia.org/ontology/party> ?uri}