animals laying down on command is an example of animals following order
fallow_deer is mammal. sitting_posture is animal. plains_animals is animals. fallow_deer is not mammal. sitting_posture is not animal. keeping_down is not action_performed_by_animals. sitting_on is action_performed_by_animals. plains_animals is not animals. guiding_animal is guiding. keeping_down is action_performed_by_animals.