( ( The Sun ) ( ( is ( ( ( ( made up ) ( of ( ( ( mostly hydrogen ) and ) ( helium gas ) ) ) ) , ) ( with ( traces ( of ( other elements ) ) ) ) ) ) . ) )
(ROOT (S (NP (DT The) (NNP Sun)) (VP (VBZ is) (VP (VBN made) (PRT (RP up)) (PP (IN of) (NP (NP (RB mostly) (NN hydrogen)) (CC and) (NP (JJ helium) (NN gas)))) (, ,) (PP (IN with) (NP (NP (NNS traces)) (PP (IN of) (NP (JJ other) (NNS elements))))))) (. .)))
The Sun is made up of mostly hydrogen and helium gas, with traces of other elements.
(ROOT (S (NP (DT The) (NN sun)) (ADVP (RB mostly)) (VP (VBD made) (PRT (RP up)) (PP (IN of) (NP (DT the) (NN element) (NN hydrogen)))) (. .)))