( ( Retina ( The retina ) ) ( ( uses ( ( nerve cells ) ( ( known ( as ( ( ( rods and ) cones ) ( -LRB- ( photoreceptors -RRB- ) ) ) ) ) ( to ( detect ( ( light and ) color ) ) ) ) ) ) . ) )
(ROOT (S (NP (NP (NNP Retina)) (NP (DT The) (NN retina))) (VP (VBZ uses) (NP (NP (NN nerve) (NNS cells)) (VP (VBN known) (PP (IN as) (NP (NP (NNS rods) (CC and) (NNS cones)) (PRN (-LRB- -LRB-) (NP (NNS photoreceptors)) (-RRB- -RRB-)))) (S (VP (TO to) (VP (VB detect) (NP (NN light) (CC and) (NN color)))))))) (. .)))
Retina The retina uses nerve cells known as rods and cones (photoreceptors) to detect light and color.
(ROOT (S (NP (NP (DT The) (JJ light-sensing) (NNS cells)) (PP (IN in) (NP (DT the) (NN retina)))) (VP (VBP are) (VP (VBN called) (NP (NNS rods) (CC and) (NNS cones)))) (. .)))