Classify each of the following as either a dog breed or cat breed: german shepherd, bulldog, labrador retriever, french bulldog, siberian husky, alaskan malamute, poodle, chihuahua, rottweiler, british shorthair, maine coon, persian, ragdoll, sphynx, american shorthair, birman, russian blue

german shepherd - dog, bulldog - dog, labrador retriever - dog, french bulldog - dog, siberian husky - dog, alaskan malamute - dog, poodle - dog, chihuahua - dog, rottweiler - dog, british shorthair - cat, maine coon - cat, persian - cat, ragdoll - cat, sphynx - cat, american shorthair - cat, birman - cat, russian blue - cat