SELECT DISTINCT ?uri WHERE { <http://dbpedia.org/resource/Europa_(moon)> <http://dbpedia.org/property/discoverer> ?uri. <http://dbpedia.org/resource/Callisto_(moon)> <http://dbpedia.org/ontology/discoverer> ?uri}
Who discovered Europa and Callisto?
SELECT DISTINCT ?m WHERE { resource:Europa_(moon) property:discoverer ?m . resource:Callisto_(moon) property:discoverer ?m }
Galileo Galilei
The discoverer of both Europa and Callisto is [Galileo Galilei].
The inventor of Europe and Callisto [Galileo Galileo].