( ( In ( ( ( ( the ( ( very innermost ) part ) ) ( of ( the Sun ) ) ) , ) ( called ( its core ) ) ) ) ( , ( ( ( ( ( ( the temperature ) ( is ( ( about ( 15 million ) ) Kelvins ) ) ) ( , ( ( ( the density ) ( is ( ( ( 150 times ) that ) ( of water ) ) ) ) , ) ) ) and ) ( ( the pressure ) ( ( ( is ( ( ( ( ( over 200 ) billion ) times ) greater ) ( than ( atmospheric pressure ) ) ) ) here ) ( on Earth ) ) ) ) . ) ) )
(ROOT (S (PP (IN In) (NP (NP (DT the) (ADJP (RB very) (JJ innermost)) (NN part)) (PP (IN of) (NP (DT the) (NNP Sun))) (, ,) (VP (VBN called) (NP (PRP$ its) (NN core))))) (, ,) (S (NP (DT the) (NN temperature)) (VP (VBZ is) (NP (QP (RB about) (CD 15) (CD million)) (NNS Kelvins)))) (PRN (, ,) (S (NP (DT the) (NN density)) (VP (VBZ is) (NP (NP (QP (CD 150) (NNS times)) (DT that)) (PP (IN of) (NP (NN water)))))) (, ,)) (CC and) (S (NP (DT the) (NN pressure)) (VP (VBZ is) (ADJP (ADJP (NP (QP (IN over) (CD 200) (CD billion) (NNS times))) (JJR greater)) (PP (IN than) (NP (JJ atmospheric) (NN pressure)))) (ADVP (RB here)) (PP (IN on) (NP (NNP Earth))))) (. .)))
In the very innermost part of the Sun, called its core, the temperature is about 15 million Kelvins, the density is 150 times that of water, and the pressure is over 200 billion times greater than atmospheric pressure here on Earth.
(ROOT (S (NP (DT The) (NN core)) (VP (VBZ is) (NP (NP (DT the) (NN sun) (POS 's)) (NN innermost) (NN layer))) (. .)))