( ( While ( ( our Earth ) ( ( makes ( a ( single ( yearly orbit ) ) ) ) ( around ( the Sun ) ) ) ) ) ( , ( it ( ( ( ( takes Mars ) ( ( a little ) ( over ( 2 Earth-years ) ) ) ) ( to ( make ( one orbit ) ) ) ) . ) ) ) )
(ROOT (S (SBAR (IN While) (S (NP (PRP$ our) (NN Earth)) (VP (VBZ makes) (NP (DT a) (JJ single) (JJ yearly) (NN orbit)) (PP (IN around) (NP (DT the) (NNP Sun)))))) (, ,) (NP (PRP it)) (VP (VBZ takes) (NP (NNP Mars)) (PP (NP (DT a) (JJ little)) (IN over) (NP (CD 2) (NNS Earth-years))) (S (VP (TO to) (VP (VB make) (NP (CD one) (NN orbit)))))) (. .)))
While our Earth makes a single yearly orbit around the Sun, it takes Mars a little over 2 Earth-years to make one orbit.
(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.