( ( ( ( ( ( ( ( Consumers ( that ( eat ( only plants ) ) ) ) ( are ( called herbivores ) ) ) ; ) ( carnivores ( eat ( only animals ) ) ) ) ; ) and ) ( omnivores ( consume ( ( a combination ) ( of ( both ( ( plants and ) animals ) ) ) ) ) ) ) . )
(ROOT (S (S (NP (NP (NNS Consumers)) (SBAR (WHNP (WDT that)) (S (VP (VBP eat) (NP (JJ only) (NNS plants)))))) (VP (VBP are) (VP (VBN called) (NP (NNS herbivores))))) (: ;) (S (NP (NNS carnivores)) (VP (VBP eat) (NP (JJ only) (NNS animals)))) (: ;) (CC and) (S (NP (NNS omnivores)) (VP (VBP consume) (NP (NP (DT a) (NN combination)) (PP (IN of) (NP (DT both) (NNS plants) (CC and) (NNS animals)))))) (. .)))
Consumers that eat only plants are called                  herbivores; carnivores eat only animals; and omnivores consume a                  combination of both plants and animals.
(ROOT (S (NP (NNS Carnivores)) (VP (VBZ is) (NP (NP (DT the) (NN term)) (PP (IN for) (NP (NP (NP (NNS heterotrophs)) (SBAR (WHNP (WDT that)) (S (VP (VBP eat) (ADVP (RB only)))))) (CC or) (NP (RB mainly) (NNS animals)))))) (. .)))