( ( The Pupil ) ( ( is ( ( the ( round hole ) ) ( that ( ( connects ( ( the ( front chamber ) ) ( of ( the eye ) ) ) ) ( to ( ( the ( interior chamber ) ) ( of ( the eye ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (DT The) (NNP Pupil)) (VP (VBZ is) (NP (NP (DT the) (NN round) (NN hole)) (SBAR (WHNP (WDT that)) (S (VP (VBZ connects) (NP (NP (DT the) (JJ front) (NN chamber)) (PP (IN of) (NP (DT the) (NN eye)))) (PP (TO to) (NP (NP (DT the) (JJ interior) (NN chamber)) (PP (IN of) (NP (DT the) (NN eye)))))))))) (. .)))
The Pupil is the round hole that connects the front chamber of the eye to the interior chamber of the eye.
(ROOT (S (NP (DT The) (NN pupil)) (VP (VBZ is) (NP (NP (DT the) (NN opening)) (PP (IN in) (NP (NP (DT the) (NN front)) (PP (IN of) (NP (DT the) (NN eye))))))) (. .)))