If each image contains one pencil case, and all pencil cases are displayed head-on and feature some blue component.
return pencil cases ;return images ;return number of  #1 for each  #2 ;return #2 where  #3 is equal to  one ;return number of  #2 ;return number of  #4 ;return if  #5 is equal to  #6 ;return #1 that are displayed head-on ;return components of #8 ;return #8 where  #9 is blue ;return number of  #1 ;return number of  #10 ;return if  #11 is equal to  #12 ;return if  both  #7 and #13 are true
['select', 'select', 'group', 'comparative', 'aggregate', 'aggregate', 'boolean', 'filter', 'project', 'comparative', 'aggregate', 'aggregate', 'boolean', 'boolean']