( ( ( Neptune ( ( The ( eighth planet ) ) ( from ( the sun ) ) ) ) ( -LRB- ( ( ( well , ) ( some ( of ( ( the time ) ( it ( ( 's eighth ) ( , ( but ( more ( ( on that ) later ) ) ) ) ) ) ) ) ) ) -RRB- ) ) ) ( ( has ( ( a ( rocky core ) ) ( surrounded ( by ( ice ( , ( hydrogen ( , ( ( helium and ) methane ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NP (NP (NNP Neptune)) (NP (NP (DT The) (JJ eighth) (NN planet)) (PP (IN from) (NP (DT the) (NN sun))))) (PRN (-LRB- -LRB-) (NP (NP (NN well)) (, ,) (NP (NP (DT some)) (PP (IN of) (NP (NP (DT the) (NN time)) (SBAR (S (NP (PRP it)) (VP (VBZ 's) (ADJP (JJ eighth)) (PRN (, ,) (CC but) (ADVP (RBR more) (IN on) (RB that) (RB later)))))))))) (-RRB- -RRB-))) (VP (VBZ has) (NP (NP (DT a) (JJ rocky) (NN core)) (VP (VBN surrounded) (PP (IN by) (NP (NN ice) (, ,) (NN hydrogen) (, ,) (NN helium) (CC and) (NN methane)))))) (. .)))
Neptune The eighth planet from the sun (well, some of the time it's eighth, but more on that later) has a rocky core surrounded by ice, hydrogen, helium and methane.
(ROOT (S (NP (NP (DT The) (JJ eighth) (NN planet)) (PP (IN from) (NP (PRP$ our) (NN sun)))) (VP (VBZ is) (ADJP (JJ neptune))) (. .)))
The eighth planet from our sun is neptune.