( ( In ( ( the retina ) ( of ( the eye ) ) ) ) ( ( ( the ( pigment cells ) ) ( -LRB- ( ( ( rods and ) cones ) -RRB- ) ) ) ( ( ( adjust or ) ( regulate ( ( the ( entering light ) ) ( -LRB- ( ( see vision ) -RRB- ) ) ) ) ) . ) ) )
(ROOT (S (PP (IN In) (NP (NP (DT the) (NN retina)) (PP (IN of) (NP (DT the) (NN eye))))) (NP (NP (DT the) (NN pigment) (NNS cells)) (PRN (-LRB- -LRB-) (NP (NP (NNS rods)) (CC and) (NP (NNS cones))) (-RRB- -RRB-))) (VP (VP (VBP adjust)) (CC or) (VP (VB regulate) (NP (NP (DT the) (JJ entering) (NN light)) (PRN (-LRB- -LRB-) (S (VP (VB see) (NP (NN vision)))) (-RRB- -RRB-))))) (. .)))
In the retina of the eye the pigment cells (rods and cones) adjust or regulate the entering light (see vision ).
(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)))) (. .)))