( ( inner core ) ( - ( ( ( ( iron and ) ( ( nickel and ) cobalt ) ) ( combine ( to ( make ( ( the ( innermost layer ) ) ( of ( the earth ) ) ) ) ) ) ) . ) ) )
(ROOT (FRAG (NP (JJ inner) (NN core)) (: -) (S (NP (NP (NN iron)) (CC and) (NP (NN nickel) (CC and) (NN cobalt))) (VP (VBP combine) (S (VP (TO to) (VP (VB make) (NP (NP (DT the) (JJ innermost) (NN layer)) (PP (IN of) (NP (DT the) (NN earth))))))))) (. .)))
inner core - iron and nickel and cobalt combine to make the innermost layer of the earth.
(ROOT (S (NP (DT The) (NN core)) (VP (VBZ is) (NP (NP (DT the) (NN sun) (POS 's)) (NN innermost) (NN layer))) (. .)))