( ( Mars ( facts Mars ) ) ( ( is ( ( the ( fourth planet ) ) ( from ( ( the sun ) ( -LRB- ( ( ( Mercury ( , ( Venus ( , ( Earth , ) ) ) ) ) ( come ( before it ) ) ) -RRB- ) ) ) ) ) ) . ) )
(ROOT (S (NP (NNP Mars) (NNP facts) (NNP Mars)) (VP (VBZ is) (NP (NP (DT the) (JJ fourth) (NN planet)) (PP (IN from) (NP (NP (DT the) (NN sun)) (PRN (-LRB- -LRB-) (NP (NP (NNP Mercury) (, ,) (NNP Venus) (, ,) (NNP Earth) (, ,)) (VP (VBN come) (PP (IN before) (NP (PRP it))))) (-RRB- -RRB-)))))) (. .)))
Mars facts Mars is the fourth planet from the sun (Mercury, Venus, Earth, come before it).
(ROOT (S (NP (NNP Mars)) (VP (VBZ is) (NP (NP (DT the) (JJ fourth) (NN planet)) (PP (IN from) (NP (DT the) (NN sun))))) (. .)))