Assertion: ruminant | /r/HasProperty | hard to distinguish
Facets:
Source sentences:
text: The North American Miocene (23 million to 5.3 million years ago) produced some ruminants, such as Blastomeryx, that are hard to distinguish from the early palaeomerycine relatives of giraffes and deer in the Old World, which, with the North American groups, constitute the family Palaeomerycidae.