Give the full name and staff id of the staff who has handled the fewest payments.
return staff  ;return payments handled of  #1 ;return number of #2 for each #1 ;return #1 where  #3 is  lowest ;return full name of  #4 ;return staff  id of  #5 ;return #5 ,   #6
['select', 'project', 'group', 'superlative', 'project', 'project', 'union']