( ( The ( magnetic ( North pole ) ) ) ( ( ( is not ) ( in ( ( the ( same place ) ) ( as ( ( ( the ( ( ` ( real ( ' North ) ) ) pole ) ) , ) ( ( the point ) ( where ( ( ( the ( ( -LRB- ( imaginary -RRB- ) ) ( rotational axis ) ) ) ( of ( the earth ) ) ) ( sticks ( into ( the ice ) ) ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (DT The) (JJ magnetic) (NNP North) (NN pole)) (VP (VBZ is) (RB not) (PP (IN in) (NP (NP (DT the) (JJ same) (NN place)) (PP (IN as) (NP (NP (DT the) (ADJP (`` `) (JJ real) ('' ') (JJ North)) (NN pole)) (, ,) (NP (NP (DT the) (NN point)) (SBAR (WHADVP (WRB where)) (S (NP (NP (DT the) (PRN (-LRB- -LRB-) (NP (NNP imaginary)) (-RRB- -RRB-)) (JJ rotational) (NN axis)) (PP (IN of) (NP (DT the) (NN earth)))) (VP (VBZ sticks) (PP (IN into) (NP (DT the) (NN ice)))))))))))) (. .)))
The magnetic North pole is not in the same place as the 'real' North pole, the point where the (imaginary) rotational axis of the earth sticks into the ice.
(ROOT (S (NP (NP (DT The) (NN earth) (POS 's)) (JJ magnetic) (NNS poles)) (VP (VBP have) (VP (VBN switched) (NP (NNS places)) (ADVP (RB repeatedly)) (PP (IN in) (NP (DT the) (NN past))))) (. .)))