If in one of the photos, there is at least one tree pictured in front of the buildings.
return tree ;return buildings ;return #1 pictured in  front of #2 ;return photos ;return the  number of  #3 for each  #4 ;return #4 where  #5 is at least one ;return the  number of  #6 ;return if  #7 is equal to  one
['select', 'select', 'filter', 'select', 'group', 'comparative', 'aggregate', 'boolean']