A course of the sun was one year, during which time the earth completes its orbit.
(A course of the sun; was; one year, during which time the earth completes its orbit) (the earth; completes; its orbit; T:one year; T:during which time)
A course of the sun the earth
was completes
one year, during which time the earth completes its orbit
its orbit T:one year T:during which time