If a person in blue jeans is bending and reaching into a slot in a machine.
return person ;return blue jeans ;return #1 that is in  #2 ;return machine ;return slot in  #4 ;return if  #3 is bending ;return if  #3 is reaching into #5 ;return if  both  #6 and #7 are true
['select', 'select', 'filter', 'select', 'project', 'boolean', 'boolean', 'boolean']