( ( ( ( ( The sun ) ( is ( in ( ( the center ) ( of ( the ( solar system ) ) ) ) ) ) ) ; ) ( ( ( ( the earth ) and ) ( other planets ) ) ( move ( around ( the sun ) ) ) ) ) . )
(ROOT (S (S (NP (DT The) (NN sun)) (VP (VBZ is) (PP (IN in) (NP (NP (DT the) (NN center)) (PP (IN of) (NP (DT the) (JJ solar) (NN system))))))) (: ;) (S (NP (NP (DT the) (NN earth)) (CC and) (NP (JJ other) (NNS planets))) (VP (VBP move) (PP (IN around) (NP (DT the) (NN sun))))) (. .)))
The sun is in the center of the solar system; the earth and other planets move around the sun.
(ROOT (S (NP (DT The) (NN sun)) (VP (VBZ is) (VP (VBN considered) (NP (NP (DT the) (NN center)) (PP (IN of) (NP (DT the) (JJ solar) (NN system)))))) (. .)))