( ( ( ( ( ( ( The earth ) ( orbits ( ( the sun ) ( in ( one year ) ) ) ) ) , ) and ) so ) ( ( ( the revolution ) ( of ( the Earth ) ) ) ( ( takes one ) year ) ) ) . )
(ROOT (S (S (NP (DT The) (NN earth)) (VP (VBZ orbits) (NP (NP (DT the) (NN sun)) (PP (IN in) (NP (CD one) (NN year)))))) (, ,) (CC and) (IN so) (S (NP (NP (DT the) (NN revolution)) (PP (IN of) (NP (DT the) (NN Earth)))) (VP (VBZ takes) (NP (CD one)) (NP (NN year)))) (. .)))
The earth orbits the sun in one year, and so the revolution of the Earth takes one year.
(ROOT (S (NP (PRP It)) (VP (VBZ takes) (PP (IN about) (NP (NP (CD one) (NN year)) (PP (IN for) (NP (NN earth))))) (S (VP (TO to) (VP (VB orbit) (NP (DT the) (NN sun)))))) (. .)))
It takes about one year for earth to orbit the sun.