Premise: Mammals are any vertebrates within the class Mammalia ( [ məˈmeɪli.ə ] from Latin mamma #Latin `` breast '' ) , a clade of endothermic amniotes distinguished from reptiles ( including birds ) by the possession of a neocortex ( a region of the brain ) , hair , three middle ear bones and mammary glands . Mammalia is a class of animal within the Phylum Chordata .
Hypothesis: Mammals are within the classification of Mammalia.
Label: ENTAILMENT