If there are exactly two water buffalos with one of them facing leftward.
return water buffalos ;return #1 that are facing leftward ;return the  number of  #1 ;return the  number of  #2 ;return if  #3 is equal to  two ;return if  #4 is equal to  one ;return if  both  #5 and #6 is true
['select', 'filter', 'aggregate', 'aggregate', 'boolean', 'boolean', 'boolean']