( Carnivores ( get ( their energy ) ) )
(ROOT (S (NP (NNS Carnivores)) (VP (VBP get) (NP (PRP$ their) (NN energy)))))
Carnivores get their energy
(ROOT (S (NP (DT A) (PRN (-LRB- -LRB-) (NP (NN n)) (-RRB- -RRB-)) (NN carnivore)) (VP (VBZ is) (PP (IN at) (NP (NP (DT the) (NN top)) (PP (IN of) (NP (DT the) (NN energy) (NN pyramid)))))) (. .)))