Which of these types of horse markings is not a facial marking?

Horses exhibit a diverse array of coat colors and distinctive markings on white areas. The 'facial markings' are usually described by shape and location. The common ones are 'blaze', 'strip, 'bald face', 'star', and 'snip'. The 'blaze' is a wide white stripe and the 'stripe' or thin 'blaze' is a narrow white stripe, both down the middle of the face. The 'bald face' is a very wide 'blaze', extending to or past the eyes. The 'star' is a white marking between or above the eyes. It may be 'faint star', 'star', 'star and strip' or 'irregular star'. The 'snip' is a white marking on the muzzle between the nostrils. The 'faint' is a small but permanent marking that usually consists of white hairs without any underlying pink skin. An 'irregular' marking is usually strip or blaze, that does not have a more or less straight path.

The 'fetlock or sock' is a 'leg marking' usually covered by white marking that extends over the 'fetlock', occasionally called a ''boot''. The 'fetlock' literally means 'foot-lock' and originally referred to the small tuft of hair situated on the rear of the fetlock joint. The 'fetlock' is a hinge joint allowing flexion and extension. A 'fetlock' is formed by the junction of the third metacarpal in the forelimb or metatarsal in the hind limb bones, either of which are commonly called cannon bones. In throughbred race horses, the 'fetlock' is involved in roughly 50% of catastropic racing injuries.