( ( If ( ( the Earth ) ( ( were ( four times ) ) ( ( its ( current distance ) ) ( from ( the Sun ) ) ) ) ) ) ( , ( ( ( the time ) ( it ( would ( take ( to ( complete ( ( one orbit ) ( of ( the Sun ) ) ) ) ) ) ) ) ) ( ( would ( be ( ( 8 times ) longer ) ) ) . ) ) ) )
(ROOT (S (SBAR (IN If) (S (NP (DT the) (NN Earth)) (VP (VBD were) (NP (CD four) (NNS times)) (NP (NP (PRP$ its) (JJ current) (NN distance)) (PP (IN from) (NP (DT the) (NNP Sun))))))) (, ,) (NP (NP (DT the) (NN time)) (SBAR (S (NP (PRP it)) (VP (MD would) (VP (VB take) (S (VP (TO to) (VP (VB complete) (NP (NP (CD one) (NN orbit)) (PP (IN of) (NP (DT the) (NNP Sun)))))))))))) (VP (MD would) (VP (VB be) (ADJP (QP (CD 8) (NNS times)) (JJR longer)))) (. .)))
If the Earth were four times its current distance from the Sun, the time it would take to complete one orbit of the Sun would be 8 times longer.
(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.