( ( An animal ) ( that ( eats ( both ( ( omnivores and ) herbivores ) ) ) ) )
(ROOT (FRAG (NP (NP (DT An) (NN animal)) (SBAR (WHNP (WDT that)) (S (VP (VBZ eats) (NP (CC both) (NNS omnivores) (CC and) (NNS herbivores))))))))
An animal that eats both omnivores and herbivores
(ROOT (S (NP (NNS Mammals)) (VP (MD may) (RB either) (VP (VB be) (NP (NNS herbivores) (, ,) (NNS omnivores) (CC or) (NNS herbivores)))) (. .)))