If multiple pairs of shoes are hanging from the power lines in at least one picture.
return pairs of  shoes ;return the  power lines ;return #1 hanging from  #2 ;return pictures of  #3 ;return number of #3 for each #4 ;return #4 where #5 is  at least two ;return number of #6 ;return if  #7 is  at least one
['select', 'select', 'filter', 'project', 'group', 'comparative', 'aggregate', 'boolean']