( ( ( The ( main parts ) ) ( of ( the cells ) ) ) ( ( are ( ( ( ( ( ( the ( cell membrane ) ) , ) nucleus ) , ) and ) ( ( the ( liquid cytoplasm ) ) ( between ( these two ) ) ) ) ) . ) )
(ROOT (S (NP (NP (DT The) (JJ main) (NNS parts)) (PP (IN of) (NP (DT the) (NNS cells)))) (VP (VBP are) (NP (NP (DT the) (NN cell) (NN membrane)) (, ,) (NP (NN nucleus)) (, ,) (CC and) (NP (NP (DT the) (JJ liquid) (NN cytoplasm)) (PP (IN between) (NP (DT these) (CD two)))))) (. .)))
The main parts of the cells are the cell membrane, nucleus, and the liquid cytoplasm between these two.
(ROOT (S (NP (DT The) (NN nucleus)) (VP (VP (VBZ is) (VP (VBN surrounded) (PP (IN by) (NP (DT a) (NN membrane))))) (CC and) (VP (VBZ holds) (NP (NP (DT the) (JJ genetic) (NN information)) (PP (IN for) (NP (DT the) (NN cell)))))) (. .)))