If two of the apes are posed in contact and face to face, but neither is held off the ground by the other.
return apes ;return #1 that are posed in  contact ;return #2 that are posed face to  face  ;return ground ;return #1 that is held off #4 ;return #5 that is held off by #1 ;return number of  #3 ;return if  #7 is equal to  two ;return if  #6 is equal to  one ;return if  both  #8 and #9 are true
['select', 'filter', 'filter', 'select', 'filter', 'filter', 'aggregate', 'boolean', 'boolean', 'boolean']