Simplify the following text for a Grade 7 native English-speaking person.
Original: The Toy Fox Terrier is a small terrier breed of dog , directly descended from the larger Fox Terrier but considered a separate breed .
Simplified: The Toy Fox Terrier ( also known as American Toy Terrier , Amertoy ) is a small terrier breed of dogs . They are related to the Fox Terrier , but are considered a separate breed .