( ( ( ( ( ( Brain ( The brain ) ) ( is ( ( the ( ( most complicated ) organ ) ) ( in ( the body ) ) ) ) ) , ) and ) ( ( a ( complex ( , ( fully-formed brain ) ) ) ) ( is ( one ( of ( ( the ( derived characteristics ) ) ( of vertebrates ) ) ) ) ) ) ) . )
(ROOT (S (S (NP (JJ Brain) (DT The) (NN brain)) (VP (VBZ is) (NP (NP (DT the) (ADJP (RBS most) (JJ complicated)) (NN organ)) (PP (IN in) (NP (DT the) (NN body)))))) (, ,) (CC and) (S (NP (DT a) (JJ complex) (, ,) (JJ fully-formed) (NN brain)) (VP (VBZ is) (NP (NP (CD one)) (PP (IN of) (NP (NP (DT the) (JJ derived) (NNS characteristics)) (PP (IN of) (NP (NNS vertebrates)))))))) (. .)))
Brain The brain is the most complicated organ in the body, and a complex, fully-formed brain is one of the derived characteristics of vertebrates.
(ROOT (S (NP (DT The) (NN brain)) (VP (VBZ is) (NP (NP (DT the) (ADJP (RBS most) (JJ complex)) (NN organ)) (PP (IN in) (NP (DT the) (JJ human) (NN body))))) (. .)))