( ( The Earth ) ( ( is ( ( ( approximately 30,000 ) ( light years ) ) ( from ( ( the center ) ( of ( the ( Milky ( Way Galaxy ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (DT The) (NN Earth)) (VP (VBZ is) (NP (NP (QP (RB approximately) (CD 30,000)) (JJ light) (NNS years)) (PP (IN from) (NP (NP (DT the) (NN center)) (PP (IN of) (NP (DT the) (NNP Milky) (NNP Way) (NNP Galaxy))))))) (. .)))
The Earth is approximately 30,000 light years from the center of the Milky Way Galaxy.
(ROOT (FRAG (S (S (VP (TO To) (VP (VB express) (NP (NP (DT the) (NN distance)) (PP (IN between) (NP (NP (DT the) (JJ milky) (NN way) (NN galaxy)) (CC and) (NP (JJ other) (NNS galaxies)))))))) (, ,) (NP (NP (DT the) (ADJP (RBS most) (JJ appropriate)) (NN unit)) (PP (IN of) (NP (NN measurement)))) (VP (VBZ is) (NP (DT the) (NN light-year))))))