( ( Cornea The ) ( ( transparent ( ( outer portion ) ( of ( ( the eyeball ) ( that ( transmits ( light ( to ( the retina ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NNP Cornea) (NNP The)) (VP (VBZ transparent) (NP (NP (JJ outer) (NN portion)) (PP (IN of) (NP (NP (DT the) (NN eyeball)) (SBAR (WHNP (WDT that)) (S (VP (VBZ transmits) (ADJP (JJ light) (PP (TO to) (NP (DT the) (NN retina))))))))))) (. .)))
Cornea The transparent outer portion of the eyeball that transmits light to the retina.
(ROOT (S (NP (JJ Transparent) (NN matter)) (VP (VBZ transmits) (ADJP (JJ light) (PP (IN without) (S (VP (VBG scattering) (NP (PRP it))))))) (. .)))