How to see the purity of wolf green puppies

How can I tell if a wolfie puppy is pure or not? The Wolfhound Green has a wide, wedge-shaped head with a wide, flat skull between the ears and a square jaw. The Wolf Green has a large nose, black is preferred, and small eyes with 2 equally colored dots above the eyes. The ears are small but thick, triangular in shape, vertical and erect, with the root of the ears positioned over the eyes in the same line as the neck, and a thick, drooping tail. The characteristics of the wolf green puppy: 1. 2 dots of the same color above the eyes, this is the most obvious feature; 2. The tail is pendulous, the nosepiece is black and large; 3. Generally the four feet are black, and the color of the legs is different. This breed has a wide head with a large skull and a large snout, and its head is wedge-shaped, but properly proportioned to the body; at rest, there is little wrinkling; the head between the two ears is wide and flat; the jaws are square, powerful and slight in the throat. The head profile is bluntly triangular when viewed from above. The nose is large, straight, wide and black, black is always preferred; the eyes are small, thick brown close to black, the darker the better the back is flat and straight, the eyes are smaller, tricolor shaped thick brown, the darker the better. The ears are relatively small, this small is relative to the large-eared dog, ears thick, triangular, two ears vertical and standing, if folded forward, its length so that the tip of the ear just touches the upper corner of the eye. The ears are triangular in shape, with slightly rounded tips and wide roots, which are positioned at a wide distance, but the roots cannot be positioned very low, reaching slightly forward, over the eyes and in the same line as the neck. The tail root is thick and strong, the tail drops down and its length reaches exactly to the fly joint. The hair of the tail is thick, straight and dense, and the tail is not allowed to be lifted when it is standing down. Kunming Wolfhound, with a relatively single coat color, has three types of hair: wolf green (greenish gray), grass yellow (light brown) and black back (black on the back, with a light brown or yellowish brown color on the underbelly and limbs) (pure black, included in the black back group in Kunming dog races).