( ( The ( optic nerve ) ) ( ( ( ( ( sends ( visual information ) ) ( from ( ( the eye ) ( to ( the brain ) ) ) ) ) , ) ( allowing ( us ( to see ) ) ) ) . ) )
(ROOT (S (NP (DT The) (JJ optic) (NN nerve)) (VP (VBZ sends) (NP (JJ visual) (NN information)) (PP (IN from) (NP (NP (DT the) (NN eye)) (PP (TO to) (NP (DT the) (NN brain))))) (, ,) (S (VP (VBG allowing) (S (NP (PRP us)) (VP (TO to) (VP (VB see))))))) (. .)))
The optic nerve sends visual information from the eye to the brain, allowing us to see.
(ROOT (S (NP (NNS Brain) (CC and) (NNS eyes)) (VP (VBP are) (S (NP (DT the) (NNS organs)) (VP (VB work) (PRT (RP together)) (S (VP (TO to) (VP (VB allow) (S (NP (PRP us)) (VP (TO to) (VP (VB see)))))))))) (. .)))