( ( ( Mantle Layer ) ( of ( ( the ( Earth 's ) ) interior ) ) ) ( ( composed ( of ( ( mostly ( solid rock ) ) ( that ( ( extends ( from ( ( the base ) ( of crust ) ) ) ) ( to ( ( a depth ) ( of ( ( about 2,900 ) kilometers ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NP (NNP Mantle) (NNP Layer)) (PP (IN of) (NP (NP (DT the) (NN Earth) (POS 's)) (NN interior)))) (VP (VBN composed) (PP (IN of) (NP (NP (RB mostly) (JJ solid) (NN rock)) (SBAR (WHNP (WDT that)) (S (VP (VBZ extends) (PP (IN from) (NP (NP (DT the) (NN base)) (PP (IN of) (NP (NN crust))))) (PP (TO to) (NP (NP (DT a) (NN depth)) (PP (IN of) (NP (QP (RB about) (CD 2,900)) (NNS kilometers))))))))))) (. .)))
Mantle Layer of the Earth's interior composed of mostly solid rock that extends from the base of crust to a depth of about 2,900 kilometers.
(ROOT (S (NP (NP (DT The) (NN earth) (POS 's)) (NN crust)) (VP (VBZ is) (VP (VBN composed) (PP (IN of) (NP (JJ igneuos) (NN rock))))) (. .)))