( ( ( All ( the ( other ( rocky planets ) ) ) ) ( -- ( ( ( Mercury , ) ( Venus ( , ( ( Earth and ) Mars ) ) ) ) -- ) ) ) ( ( are ( ( ( located ( in ( the ( inner ( solar system ) ) ) ) ) , ) ( close ( to ( the Sun ) ) ) ) ) . ) )
(ROOT (S (NP (NP (PDT All) (DT the) (JJ other) (JJ rocky) (NNS planets)) (PRN (: --) (NP (NP (NNP Mercury)) (, ,) (NP (NNP Venus) (, ,) (NNP Earth) (CC and) (NNP Mars))) (: --))) (VP (VBP are) (VP (VBN located) (PP (IN in) (NP (DT the) (JJ inner) (JJ solar) (NN system))) (, ,) (ADVP (RB close) (PP (TO to) (NP (DT the) (NNP Sun)))))) (. .)))
All the other rocky planets -- Mercury, Venus, Earth and Mars -- are located in the inner solar system, close to the Sun.
(ROOT (S (NP (NNP Mercury)) (VP (VBZ is) (ADVP (RB always)) (ADJP (ADJP (JJR closer)) (PP (TO to) (NP (DT the) (NN sun)))) (SBAR (IN than) (S (NP (PRP it)) (VP (VBZ is) (PP (TO to) (NP (NN earth))))))) (. .)))
Mercury is always closer to the sun than it is to earth.