( ( ( ( ( Earth ( has ( ( ( three ( main layers ) ) , ) ( ( the ( outer most ) ) ( is ( the crust ) ) ) ) ) ) ( , ( ( ( the ( second layer ) ) ( is ( the mantle ) ) ) , ) ) ) and ) ( ( the ( third layer ) ) ( is ( the core ) ) ) ) . )
(ROOT (S (S (NP (NNP Earth)) (VP (VBZ has) (NP (NP (CD three) (JJ main) (NNS layers)) (, ,) (NP (NP (DT the) (JJ outer) (JJS most)) (SBAR (S (VP (VBZ is) (NP (DT the) (NN crust))))))))) (PRN (, ,) (S (NP (DT the) (JJ second) (NN layer)) (VP (VBZ is) (NP (DT the) (NN mantle)))) (, ,)) (CC and) (S (NP (DT the) (JJ third) (NN layer)) (VP (VBZ is) (NP (DT the) (NN core)))) (. .)))
Earth has three main layers, the outer most is the crust, the second layer is the mantle, and the third layer is the core.
(ROOT (S (NP (NP (DT The) (JJ mantle) (NN layer)) (PP (IN of) (NP (NN earth)))) (VP (VBZ is) (VP (VBN located) (ADVP (RB just)) (PP (IN below) (NP (DT the) (NN crust))))) (. .)))
The mantle layer of earth is located just below the crust.