( ( Most ( plants cells ) ) ( ( have ( ( a ( CENTRAL VACUOLE ) ) ( surrounded ( by ( ( a membrane ) ( called ( ( ( the tonoplast ) , ) ( which ( is ( part ( of ( the ( endomembrane system ) ) ) ) ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (JJS Most) (NNS plants) (NNS cells)) (VP (VBP have) (NP (NP (DT a) (NNP CENTRAL) (NNP VACUOLE)) (VP (VBN surrounded) (PP (IN by) (NP (NP (DT a) (NN membrane)) (VP (VBN called) (NP (NP (DT the) (NN tonoplast)) (, ,) (SBAR (WHNP (WDT which)) (S (VP (VBZ is) (NP (NP (NN part)) (PP (IN of) (NP (DT the) (JJ endomembrane) (NN system)))))))))))))) (. .)))
Most plants cells have a CENTRAL VACUOLE surrounded by a membrane called the tonoplast, which is part of the endomembrane system.
(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))))) (. .)))