Complex sentence: A cloven-hoof is a type of hoof split into two toes, each encased by a layer of horn, that is found on the even-toed ungulates which in scientific terms form the mammalian order Artiodactyla.
Split into simpler sentences: A cloven-hoof is a type of hoof split into two toes, each encased by a layer of horn. This is found on even-toed ungulates, which in scientific terms form the mammalian order Artiodactyla.