( ( ( ( ( Their ( eye pupil ) ) ( is round ) ) and ) ( there ( is ( ( no ( ( pit or ) opening ) ) ( near ( the nostril ) ) ) ) ) ) . )
(ROOT (S (S (NP (PRP$ Their) (NN eye) (NN pupil)) (VP (VBZ is) (NP (NN round)))) (CC and) (S (NP (EX there)) (VP (VBZ is) (NP (NP (DT no) (NN pit) (CC or) (NN opening)) (PP (IN near) (NP (DT the) (NN nostril)))))) (. .)))
Their eye pupil is round and there is no pit or opening near the nostril.
(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))))))) (. .)))