( Neptune ( ( will ( ( be ( ( the ( farthest planet ) ) ( from ( the Sun ) ) ) ) ( until 1999 ) ) ) . ) )
(ROOT (S (NP (NNP Neptune)) (VP (MD will) (VP (VB be) (NP (NP (DT the) (JJS farthest) (NN planet)) (PP (IN from) (NP (DT the) (NNP Sun)))) (PP (IN until) (NP (CD 1999))))) (. .)))
Neptune will be the farthest planet from the Sun until 1999.
(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.