If one image features only solid-colored towels in varying colors.
return towels ;return #1 that are solid-colored ;return colors of #2 ;return #2 where  #3 are varying ;return #1 besides  #2 ;return images ;return number of  #4 for each  #6 ;return number of  #5 for each  #6 ;return #6 where  #7 is equal to  #8 ;return number of  #9 ;return if  #10 is equal to  one
['select', 'filter', 'project', 'comparative', 'discard', 'select', 'group', 'group', 'comparative', 'aggregate', 'boolean']