( ( ( Inner ( Core ( The weight ) ) ) ( of ( ( the ( Sun 's ) ) ( outer layers ) ) ) ) ( ( ( ( ( compresses ( ( the gas ) ( of ( the ( innermost region ) ) ) ) ) ( to ( ( a density ) ( about ( ( ( 100 times ) that ) ( of water ) ) ) ) ) ) and ) ( ( raises ( the ( central temperature ) ) ) ( to ( ( ( about ( 15 million ) ) K ) ( -LRB- ( ( 27,000,000 ( deg F ) ) -RRB- ) ) ) ) ) ) . ) )
(ROOT (S (NP (NP (NNP Inner) (NNP Core) (NX (DT The) (NN weight))) (PP (IN of) (NP (NP (DT the) (NNP Sun) (POS 's)) (JJ outer) (NNS layers)))) (VP (VP (VBZ compresses) (NP (NP (DT the) (NN gas)) (PP (IN of) (NP (DT the) (JJ innermost) (NN region)))) (PP (TO to) (NP (NP (DT a) (NN density)) (PP (IN about) (NP (NP (QP (CD 100) (NNS times)) (DT that)) (PP (IN of) (NP (NN water)))))))) (CC and) (VP (VBZ raises) (NP (DT the) (JJ central) (NN temperature)) (PP (TO to) (NP (NP (QP (RB about) (CD 15) (CD million)) (NN K)) (PRN (-LRB- -LRB-) (NP (CD 27,000,000) (NN deg) (NN F)) (-RRB- -RRB-)))))) (. .)))
Inner Core The weight of the Sun's outer layers compresses the gas of the innermost region to a density about 100 times that of water and raises the central temperature to about 15 million K (27,000,000 deg F).
(ROOT (S (NP (DT The) (DT the) (NN core)) (VP (VBZ is) (NP (NP (DT the) (JJ innermost) (NN layer)) (PP (IN of) (NP (DT the) (NN sun))))) (. .)))