Which products have problems reported by both the staff named Lacey Bosco and the staff named Kenton Champlin?
return products ;return problems of #1 ;return #2 reported by the  staff  named  Lacey Bosco ;return #2 reported by the  staff  named  Kenton Champlin ;return #2 in both #3 and  #4 ;return products of #5
['select', 'project', 'filter', 'filter', 'intersection', 'project']