Which breed is a small companion dog known for a long, silky coat and often a topknot?

The story behind the answer

Yorkshire Terriers are toy-sized companions famous for their long, silky, human-like hair that parts down the back and is often tied in a neat topknot to keep it out of their eyes. Their hallmark colors—steel blue and tan—set them apart, and show Yorkies often sport a glossy, floor-length coat.

Bred in 19th‑century England from working terriers used for ratting