How many business rates are related to each cmi cross reference? List cross reference id, master customer id and the n
return business rates ;return number of  #1 for each cmi cross reference ;return cross references ;return ids of #3 ;return master customer id  of #3 ;return #4 ,  #5 ,   #2
['select', 'group', 'select', 'project', 'project', 'union']