Assertion: howler monkey's group | /r/HasProperty | four subfamilies
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text: The second group, Cebidae, is composed of four subfamilies called Cebinae (Squirrel and Capuchin monkey), Aotidae (Douroucouli (Night/owl monkey), Atelinae (Howler monkeys, Spider monkeys, Woolly monkeys, and Woolly Spider monkey), and Pitheciidae (Uakari, Titi, and Saki monkeys).