If one image shows exactly three keys displayed on the right side of a non-round lock.
return keys ;return lock ;return #2 that is non-round ;return #1 that are displayed on the  right side of #3 ;return images ;return number of  #4 for each  #5 ;return #5 where  #6 is equal to  three ;return number of  #7 ;return if  #8 is equal to  one
['select', 'select', 'filter', 'filter', 'select', 'group', 'comparative', 'aggregate', 'boolean']