( ( The ( only difference ) ) ( ( is ( that ( ( the moon ) ( ( ( is ( ( moving relative ) ( to ( the earth ) ) ) ) and ) ( is ( ( a ( long way ) ) ( off ie ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (DT The) (JJ only) (NN difference)) (VP (VBZ is) (SBAR (IN that) (S (NP (DT the) (NN moon)) (VP (VP (VBZ is) (VP (VBG moving) (ADVP (JJ relative)) (PP (TO to) (NP (DT the) (NN earth))))) (CC and) (VP (VBZ is) (NP (NP (DT a) (JJ long) (NN way)) (PP (IN off) (NP (NN ie))))))))) (. .)))
The only difference is that the moon is moving relative to the earth and is a long way off ie.
(ROOT (S (NP (CD One) (NN way) (SBAR (IN that) (S (NP (DT the) (NN moon)) (VP (VBZ is) (ADJP (JJ different) (PP (IN from) (NP (NN earth)))))))) (VP (VBZ is) (SBAR (IN that) (S (NP (DT the) (NN moon)) (VP (VBZ has) (NP (RB almost) (DT no) (NN atmosphere)))))) (. .)))