( ( ( The ( earth 's ) ) crust ) ( ( is ( ( made up ) ( of ( ( giant Plates ) ( which ( are ( ( ( thick slabs ) ( of rock ) ) ( that ( ( make up ) ( ( ( ( the ( outermost ( 100 kilometers ) ) ) or ) so ) ( of ( the earth ) ) ) ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NP (DT The) (NN earth) (POS 's)) (NN crust)) (VP (VBZ is) (VP (VBN made) (PRT (RP up)) (PP (IN of) (NP (NP (JJ giant) (NNS Plates)) (SBAR (WHNP (WDT which)) (S (VP (VBP are) (NP (NP (JJ thick) (NNS slabs)) (PP (IN of) (NP (NN rock))) (SBAR (WHNP (WDT that)) (S (VP (VBP make) (PRT (RP up)) (NP (NP (DT the) (JJ outermost) (CD 100) (NNS kilometers)) (CC or) (ADVP (RB so)) (PP (IN of) (NP (DT the) (NN earth))))))))))))))) (. .)))
The earth's crust is made up of giant Plates which are thick slabs of rock that make up the outermost 100 kilometers or so of the earth.
(ROOT (S (NP (NP (NP (DT The) (NN earth) (POS 's)) (JJ continental) (NN crust)) (, ,) (PP (IN on) (NP (NN average))) (, ,)) (VP (VBZ is) (ADJP (NP (CD 35) (NNS kilometers)) (JJ thick))) (. .)))