( ( ( The distance ) ( from ( ( the top ) ( to ( the ( bottom knot ) ) ) ) ) ) ( ( is ( ( ( ( about 100,000 ) ( light years ) ) , ) ( comparable ( to ( ( the diameter ) ( of ( our ( Milky ( Way galaxy ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NP (DT The) (NN distance)) (PP (IN from) (NP (NP (DT the) (NN top)) (PP (TO to) (NP (DT the) (JJ bottom) (NN knot)))))) (VP (VBZ is) (NP (NP (QP (RB about) (CD 100,000)) (JJ light) (NNS years)) (, ,) (ADJP (JJ comparable) (PP (TO to) (NP (NP (DT the) (NN diameter)) (PP (IN of) (NP (PRP$ our) (NNP Milky) (NNP Way) (NN galaxy)))))))) (. .)))
The distance from the top to the bottom knot is about 100,000 light years, comparable to the diameter of our 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))))))