How many airports haven't the pilot 'Thompson' driven an aircraft?
return airports ;return aircraft of #1 ;return pilots that  have driven #2 ;return #2 where #3 is  'Thompson ;return number of  #4 for each #1 ;return #1 where #5 is  at least one ;return #1 besides #6 ;return number of  #7
['select', 'project', 'project', 'comparative', 'group', 'comparative', 'discard', 'aggregate']