( ( Polyunsaturated ( fatty acids ) ) ( ( play ( ( a ( critical role ) ) ( in ( ( the ( ( structure and ) function ) ) ( of ( the ( developing ( nervous system ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (JJ Polyunsaturated) (NN fatty) (NNS acids)) (VP (VBP play) (NP (NP (DT a) (JJ critical) (NN role)) (PP (IN in) (NP (NP (DT the) (NN structure) (CC and) (NN function)) (PP (IN of) (NP (DT the) (VBG developing) (JJ nervous) (NN system))))))) (. .)))
Polyunsaturated fatty acids play a critical role in the structure and function of the developing nervous system.
(ROOT (S (NP (DT The) (JJ nervous) (NN system)) (VP (VBZ plays) (NP (NP (DT a) (JJ critical) (NN role)) (PP (IN in) (NP (NP (DT the) (NN regulation)) (PP (IN of) (NP (NN vascular) (NNS homeostasis))))))) (. .)))