original: A hunting dog refers to any dog who assists humans in hunting.
simplifications: A hunting dog is a dog who helps humans in hunting. A hunting dog is any dog who assists in hunting. A hunting dog assists humans while hunting. A hunting dog is any dog who helps humans to hunt. A hunting dog is a dog who helps people hunt. A hunting dog is any dog that helps humans with hunting. Any dog who helps humans hunt is considered a hunting dog. A hunting dog is any dog who helps people hunt. A hunting dog assists humans with hunting. A hunting dog refers to any dog that helps humans to hunt.