( ( The Sun ) ( ( is ( at ( ( the center ) ( of ( our ( solar system ) ) ) ) ) ) . ) )
(ROOT (S (NP (DT The) (NNP Sun)) (VP (VBZ is) (PP (IN at) (NP (NP (DT the) (NN center)) (PP (IN of) (NP (PRP$ our) (JJ solar) (NN system)))))) (. .)))
The Sun is at the center of our solar system.
(ROOT (S (NP (DT The) (NN sun)) (VP (VBZ is) (NP (NP (DT the) (NN center)) (PP (IN of) (NP (PRP$ our) (JJ solar) (NN system))))) (. .)))
The sun is the center of our solar system.