If each image includes exactly one visible screen, and the screens in the left and right images face toward each other.
return images ;return screens in  #1 ;return #2 that are visible ;return number of  #3 for each  #1 ;return #1 where  #4 is equal to  one ;return number of  #5 ;return number of  #1 ;return if  #6 is equal to  #7 ;return the  left image ;return screens in  #9 ;return the  right image ;return screens in  #11 ;return if  #10 face toward #12 ;return if  #12 face toward #10 ;return if  both  #13 and #14 are true ;return if  both  #8 and #15 are true
['select', 'project', 'filter', 'group', 'comparative', 'aggregate', 'aggregate', 'boolean', 'select', 'project', 'select', 'project', 'boolean', 'boolean', 'boolean', 'boolean']