( It ( ( ( is not ) ( ( found ( in reality ) ) ( in ( ( the rocks ) ( of ( ( the ( Earth 's ) ) crust ) ) ) ) ) ) . ) )
(ROOT (S (NP (PRP It)) (VP (VBZ is) (RB not) (VP (VBN found) (PP (IN in) (NP (NN reality))) (PP (IN in) (NP (NP (DT the) (NNS rocks)) (PP (IN of) (NP (NP (DT the) (NN Earth) (POS 's)) (NN crust))))))) (. .)))
It is not found in reality in the rocks of the Earth's crust.
(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))))) (. .)))