Name few companies where don berlin and michael sears have worked together?
SELECT DISTINCT ?uri WHERE { <http://dbpedia.org/resource/Don_R._Berlin> <http://dbpedia.org/ontology/employer> ?uri. <http://dbpedia.org/resource/Michael_M._Sears> <http://dbpedia.org/ontology/employer> ?uri . }
Don_R._Berlin Michael_M._Sears