Complex sentence: The Gull Terrier is closely related to the Hinks English Bull Terrier, but in contrast to the Bull Terrier, which has an oval-shaped head, the Gull Terrier has a smooth, broad-shaped head.
Split into simpler sentences: The Gull Terrier is closely related to the Hinks English Bull Terrier. In contrast to the Bull Terrier, which has an oval-shaped head, the Gull Terrier has a smooth, broad-shaped head.