( ( Plant cells ) ( ( may ( possess ( ( a ( large ( central vacuole ) ) ) ( -LRB- ( sometimes ( ( several ( small vacuoles ) ) -RRB- ) ) ) ) ) ) ; ) )
(ROOT (S (NP (NNP Plant) (NNS cells)) (VP (MD may) (VP (VB possess) (NP (NP (DT a) (JJ large) (JJ central) (NN vacuole)) (PRN (-LRB- -LRB-) (ADVP (RB sometimes)) (NP (JJ several) (JJ small) (NNS vacuoles)) (-RRB- -RRB-))))) (: ;)))
Plant cells may possess a large central vacuole (sometimes several small vacuoles);
(ROOT (S (NP (DT The) (NN cell) (NN sap)) (VP (VBZ is) (NP (NP (DT the) (NN liquid)) (PP (IN inside) (NP (DT the) (JJ central) (NN vacuole))))) (. .)))