Question: What is the organisation whose purposes are Environmentalism and Peace?
SPARQL:
SELECT DISTINCT ?uri WHERE { ?uri <http://dbpedia.org/property/purpose> <http://dbpedia.org/resource/Environmentalism> . ?uri <http://dbpedia.org/property/purpose> <http://dbpedia.org/resource/Peace> . ?uri <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://dbpedia.org/ontology/Organisation>}