( ( The appendix ) ( ( is ( ( a ( small tube ) ) ( that ( ( branches off ) ( the ( large intestine ) ) ) ) ) ) . ) )
(ROOT (S (NP (DT The) (NN appendix)) (VP (VBZ is) (NP (NP (DT a) (JJ small) (NN tube)) (SBAR (WHNP (WDT that)) (S (VP (VBG branches) (PRT (RP off)) (NP (DT the) (JJ large) (NN intestine))))))) (. .)))
The appendix is a small tube that branches off the large intestine.
(ROOT (S (NP (DT The) (JJ large) (NN intestine)) (VP (VBZ is) (NP (NP (DT a) (JJ wide) (NN tube)) (VP (VBG connecting) (NP (DT the) (JJ small) (NN intestine)) (PP (IN with) (NP (DT the) (NNS anus)))))) (. .)))