( ( Energy and ) ( the ( Food Chain ) ) )
(ROOT (NP (NP (NNP Energy)) (CC and) (NP (DT the) (NNP Food) (NNP Chain))))
Energy and the Food Chain
(ROOT (S (NP (NP (NN Loss)) (PP (IN of) (NP (NN energy)))) (VP (VBZ is) (NP (DT the) (NN reason)) (SBAR (IN that) (S (NP (NN food) (NN chain)) (ADVP (RB typically)) (VP (VBZ has) (NP (JJ few) (NNS levels)))))) (. .)))