( ( The following ) ( ( ( is ( ( a diagram ) ( of ( magnetic reversals ) ) ) ) ( as ( ( recorded ( in ( ( the rocks ) ( of ( the ( sea floor ) ) ) ) ) ) ( away ( from ( a ( spreading center ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (DT The) (NN following)) (VP (VBZ is) (NP (NP (DT a) (NN diagram)) (PP (IN of) (NP (JJ magnetic) (NNS reversals)))) (SBAR (IN as) (S (VP (VBD recorded) (PP (IN in) (NP (NP (DT the) (NNS rocks)) (PP (IN of) (NP (DT the) (NN sea) (NN floor))))) (PP (ADVP (RB away)) (IN from) (NP (DT a) (JJ spreading) (NN center))))))) (. .)))
The following is a diagram of magnetic reversals as recorded in the rocks of the sea floor away from a spreading center.
(ROOT (S (NP (NP (NNS Rocks)) (PP (IN on) (NP (NN ocean) (NN floor)))) (VP (VBZ is) (NP (NN evidence)) (SBAR (IN that) (S (NP (JJ magnetic) (NNS reversals)) (VP (VBP occur))))) (. .)))