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