( Ganymede ( ( is ( ( ( ( the ( biggest moon ) ) ( in ( the ( solar system ) ) ) ) and ) ( bigger ( than ( the ( planets ( ( Mercury and ) Pluto ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NNP Ganymede)) (VP (VBZ is) (NP (NP (NP (DT the) (JJS biggest) (NN moon)) (PP (IN in) (NP (DT the) (JJ solar) (NN system)))) (CC and) (NP (NP (JJR bigger)) (PP (IN than) (NP (DT the) (NNS planets) (NNP Mercury) (CC and) (NNP Pluto)))))) (. .)))
Ganymede is the biggest moon in the solar system and bigger than the planets Mercury and Pluto.
(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))))) (. .)))