( ( MENINGES ( The meninges ) ) ( ( are ( ( ( ( three , ) ( ( thin layers ) ( of tissue ) ) ) ( -LRB- ( membranes -RRB- ) ) ) ( that ( completely ( cover ( ( ( the brain ) and ) ( the ( spinal cord ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NNP MENINGES) (NNP The) (NNS meninges)) (VP (VBP are) (NP (NP (NP (CD three)) (, ,) (NP (NP (JJ thin) (NNS layers)) (PP (IN of) (NP (NN tissue))))) (PRN (-LRB- -LRB-) (NP (NNS membranes)) (-RRB- -RRB-)) (SBAR (WHNP (WDT that)) (S (ADVP (RB completely)) (VP (VBP cover) (NP (NP (DT the) (NN brain)) (CC and) (NP (DT the) (JJ spinal) (NN cord)))))))) (. .)))
MENINGES The meninges are three, thin layers of tissue (membranes) that completely cover the brain and the spinal cord.
(ROOT (S (NP (NP (DT The) (CD three) (NNS layers)) (PP (IN of) (NP (NP (JJ protective) (NNS coverings)) (PP (IN of) (NP (DT the) (JJ spinal) (NN cord)))))) (VP (VBZ is) (VP (VBN called) (NP (DT the) (NNS meninges)))) (. .)))