( ( ( The positions ) ( of ( objects as ) ) ) ( ( ( ( seen ( from ( the Sun ) ) ) , ) ( used ( for ( solar ( system bodies ) ) ) ) ) . ) )
(ROOT (S (NP (NP (DT The) (NNS positions)) (PP (IN of) (NP (NNS objects) (RB as)))) (VP (VBN seen) (PP (IN from) (NP (DT the) (NNP Sun))) (, ,) (ADVP (VBN used) (PP (IN for) (NP (JJ solar) (NN system) (NNS bodies))))) (. .)))
The positions of objects as seen from the Sun, used for solar system bodies.
(ROOT (S (NP (DT The) (NN sun)) (VP (VBZ is) (NP (NP (DT the) (JJS largest) (NN body)) (PP (IN in) (NP (DT the) (JJ solar) (NN system))))) (. .)))