( ( The Earth ) ( ( is ( ( ( tilted ( on ( its axis ) ) ) , ) ( ( causing ( the ( annual changes ) ) ) ( in seasons ) ) ) ) . ) )
(ROOT (S (NP (DT The) (NN Earth)) (VP (VBZ is) (VP (VBN tilted) (PP (IN on) (NP (PRP$ its) (NNS axis))) (, ,) (S (VP (VBG causing) (NP (DT the) (JJ annual) (NNS changes)) (PP (IN in) (NP (NNS seasons))))))) (. .)))
The Earth is tilted on its axis, causing the annual changes in 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))))))))))) (. .)))