prarie dogs can run very quickly
golden_retrievers is very_trainable_dogs. miniature_poodles is dogs. spiny_dogfish is dogfish. smooth_collie is herding_dog. dogs is not_often. constant_speed_propeller is propeller. dogs is easier_to_train_than_others. pacific_spiny_dogfish is spiny_dogfish. dogs_and_parakeets is animals_frequently. german_coolie is herding_dog.