( ( plant ( cell ( wall ( ( structure and ) function ) ) ) ) ; )
(ROOT (NP (NP (NN plant) (NN cell) (NN wall) (NN structure) (CC and) (NN function)) (: ;)))
plant cell wall structure and function;
(ROOT (S (NP (DT A) (NN cell) (NN wall)) (VP (VBZ is) (RB not) (ADJP (JJ present) (PP (IN in) (NP (NN animal) (NNS cells))))) (. .)))