( ( ( ( ( The tilt ) ( of ( ( Earth 's ) axis ) ) ) and ) ( ( its revolution ) ( about ( the sun ) ) ) ) ( ( cause ( seasons ( to change ) ) ) . ) )
(ROOT (S (NP (NP (NP (DT The) (NN tilt)) (PP (IN of) (NP (NP (NNP Earth) (POS 's)) (NNS axis)))) (CC and) (NP (NP (PRP$ its) (NN revolution)) (PP (IN about) (NP (DT the) (NN sun))))) (VP (VBP cause) (S (NP (NNS seasons)) (VP (TO to) (VP (VB change))))) (. .)))
The tilt of Earth's axis and its revolution about the sun cause seasons to change.
(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))))))))))) (. .)))