( ( ( ( ( Plants ( take ( ( the ( sun 's ) ) energy ) ) ) , ) and ) ( they ( are ( ( eaten ( by ( other animals ) ) ) ( as food ) ) ) ) ) . )
(ROOT (S (S (NP (NNS Plants)) (VP (VBP take) (NP (NP (DT the) (NN sun) (POS 's)) (NN energy)))) (, ,) (CC and) (S (NP (PRP they)) (VP (VBP are) (VP (VBN eaten) (PP (IN by) (NP (JJ other) (NNS animals))) (PP (IN as) (NP (NN food)))))) (. .)))
Plants take the sun's energy, and they are eaten by other animals as food.
(ROOT (S (NP (NNS Animals)) (VP (VBP need) (NP (NP (NNS plants)) (PP (IN for) (NP (NN food) (CC and) (NN energy))))) (. .)))