( ( The Sun ) ( ( 's ( gravity ( on ( ( ( the Earth ) , ) ( which ( ( is not ) ( the case ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (DT The) (NNP Sun)) (VP (VBZ 's) (NP (NP (NN gravity)) (PP (IN on) (NP (NP (DT the) (NN Earth)) (, ,) (SBAR (WHNP (WDT which)) (S (VP (VBZ is) (RB not) (NP (DT the) (NN case))))))))) (. .)))
The Sun's gravity on the Earth, which is not the case.
(ROOT (S (NP (NNP Gravity)) (VP (VBZ attracts) (NP (DT the) (NN earth)) (PP (TO to) (NP (DT the) (NN sun)))) (. .)))