This is the time it takes for the Earth to rotate on its axis back to its 
(This; is; the time it takes) (it; takes; for the Earth to rotate on its axis back to its; T:the time) (the Earth; to rotate; on its axis back to its)
This it the Earth
is takes to rotate
the time it takes
for the Earth to rotate on its axis back to its T:the time
on its axis back to its