( ( ( ( Animals ( can ( ( ( ( ( ( break down ) , ) reassemble ) and ) destroy ) ( organic matter ) ) ) ) but ) ( they ( ( can not ) ( create it ) ) ) ) . )
(ROOT (S (S (NP (NNS Animals)) (VP (MD can) (VP (VB break) (PRT (RP down)) (, ,) (VB reassemble) (CC and) (VB destroy) (NP (JJ organic) (NN matter))))) (CC but) (S (NP (PRP they)) (VP (MD can) (RB not) (VP (VB create) (NP (PRP it))))) (. .)))
Animals can break down, reassemble and destroy organic matter but they cannot create it.
(ROOT (S (NP (NNP Matter)) (VP (MD can) (RB not) (VP (VB be) (VP (VBN created) (CC or) (VBN destroyed) (PP (IN in) (NP (DT a) (NN chemical) (NN reaction)))))) (. .)))