( ( Shows ( how ( ( the seasons ) ( arise ( because ( of ( ( the tilt ) ( of ( ( the axis ) ( of ( the Earth ) ) ) ) ) ) ) ) ) ) ) . )
(ROOT (S (VP (VBZ Shows) (SBAR (WHADVP (WRB how)) (S (NP (DT the) (NNS seasons)) (VP (VBP arise) (PP (RB because) (IN of) (NP (NP (DT the) (NN tilt)) (PP (IN of) (NP (NP (DT the) (NNS axis)) (PP (IN of) (NP (DT the) (NN Earth))))))))))) (. .)))
Shows              how the seasons arise because of the tilt of the axis of the Earth.
(ROOT (S (NP (NP (DT The) (NN tilt)) (PP (IN of) (NP (NP (NN earth)) (PP (IN on) (NP (PRP$ its) (NNS axis)))))) (VP (VBZ is) (NP (NP (CD one) (NN factor)) (SBAR (WHNP (WDT that)) (S (VP (VBZ contributes) (PP (TO to) (NP (NP (NNS seasons)) (VP (VBG occurring) (PP (IN in) (NP (JJ new) (NN york) (NN state))))))))))) (. .)))