( ( Core ( The core ) ) ( ( is ( ( the ( innermost ( 10 % ) ) ) ( of ( ( the ( Sun 's ) ) mass ) ) ) ) . ) )
(ROOT (S (NP (NP (NNP Core)) (NP (DT The) (NN core))) (VP (VBZ is) (NP (NP (DT the) (JJ innermost) (CD 10) (NN %)) (PP (IN of) (NP (NP (DT the) (NNP Sun) (POS 's)) (NN mass))))) (. .)))
Core The core is the innermost 10% of the Sun's mass.
(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))))) (. .)))