Assertion: horse's mane | /r/HasProperty | a grullo coat colour
Facets:
Source sentences:
text: The last individual, which died in captivity in 1909, was between 140 and 145 centimetres (55 and 57 in) tall at the shoulders, had a thick falling mane, a grullo coat colour, dark legs, and primitive markings, including a dorsal stripe and shoulder stripes.