( ( of ( ( the ( seven ( other planets ) ) ) ( in ( the ( Solar System ) ) ) ) ) ( , ( ( only Mercury ) ( ( shows ( greater eccentricity ) ) . ) ) ) )
(ROOT (S (PP (IN of) (NP (NP (DT the) (CD seven) (JJ other) (NNS planets)) (PP (IN in) (NP (DT the) (NNP Solar) (NNP System))))) (, ,) (NP (RB only) (NNP Mercury)) (VP (VBZ shows) (NP (JJR greater) (NN eccentricity))) (. .)))
of the seven other planets in the Solar System, only Mercury shows greater eccentricity.
(ROOT (S (NP (NNP Mercury)) (VP (VBZ is) (NP (NP (DT the) (JJS smallest) (NN planet)) (PP (IN in) (NP (PRP$ our) (JJ solar) (NN system))))) (. .)))