( So ( yes ( there ( ( will ( ( be ( a midnight ) ) ( ( Sun ( in ( New York ) ) ) ( IF ( ( ( the axis ) ( of ( the earth ) ) ) ( were ( tilted ( to ( ( 50 degrees ) ( from 23.5 ) ) ) ) ) ) ) ) ) ) . ) ) ) )
(ROOT (S (CC So) (NP (RB yes)) (ADVP (RB there)) (VP (MD will) (VP (VB be) (NP (DT a) (NN midnight)) (S (ADJP (NNP Sun) (PP (IN in) (NP (NNP New) (NNP York)))) (SBAR (IN IF) (S (NP (NP (DT the) (NNS axis)) (PP (IN of) (NP (DT the) (NN earth)))) (VP (VBD were) (VP (VBN tilted) (PP (TO to) (NP (NP (CD 50) (NNS degrees)) (PP (IN from) (NP (CD 23.5)))))))))))) (. .)))
So yes there will be a midnight Sun in New York IF the axis of the earth were tilted to 50 degrees from 23.5.
(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))))))))))) (. .)))