Who was in the missions of Apollo 11 and Gemini 8?
SELECT DISTINCT ?uri WHERE { ?uri <http://dbpedia.org/property/mission> <http://dbpedia.org/resource/Apollo_11> . ?uri <http://dbpedia.org/property/mission> <http://dbpedia.org/resource/Gemini_8> . }
Apollo_11 Gemini_8