( ( The nucleus ) ( ( is ( demarked ( by ( ( ( ( ( a ( double membrane ) ) , ) ( the ( nuclear envelope ) ) ) , ) ( which ( ( segregates ( the ( nuclear contents ) ) ) ( from ( ( the rest ) ( of ( the cell ) ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (DT The) (NN nucleus)) (VP (VBZ is) (VP (VBN demarked) (PP (IN by) (NP (NP (DT a) (JJ double) (NN membrane)) (, ,) (NP (DT the) (JJ nuclear) (NN envelope)) (, ,) (SBAR (WHNP (WDT which)) (S (VP (VBZ segregates) (NP (DT the) (JJ nuclear) (NNS contents)) (PP (IN from) (NP (NP (DT the) (NN rest)) (PP (IN of) (NP (DT the) (NN cell)))))))))))) (. .)))
The nucleus is demarked by a double membrane, the nuclear envelope , which segregates the nuclear contents from the rest of the cell.
(ROOT (S (NP (NNP Nuclear) (NNP enevelope)) (VP (VBZ is) (NP (NP (DT a) (JJ double) (NN membrane)) (PP (IN of) (NP (NP (DT the) (NN nucleus)) (SBAR (WHNP (WDT that)) (S (VP (VBZ encloses) (NP (DT the) (JJ genetic) (NN material))))))))) (. .)))