( ( ( The ( Seasons ( The tilt ) ) ) ( of ( ( the ( earth 's ) ) axis ) ) ) ( ( is ( ( the reason ) ( for ( our seasons ) ) ) ) . ) )
(ROOT (S (NP (NP (DT The) (NNPS Seasons) (NNP The) (NN tilt)) (PP (IN of) (NP (NP (DT the) (NN earth) (POS 's)) (NNS axis)))) (VP (VBZ is) (NP (NP (DT the) (NN reason)) (PP (IN for) (NP (PRP$ our) (NNS seasons))))) (. .)))
The Seasons The tilt of the earth's axis is the reason for our seasons.
(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))))))))))) (. .)))