The Earth takes 24 hours to complete one rotation, therefore, it rotates at the rate 360 / 24 hours = 15 /hour.
(it; rotates; at the rate) Context(it rotates,List([62, 72))):(The Earth; takes; 24 hours; to complete one rotation)
it rotates,List([62, 72))
it The Earth
rotates takes
at the rate
24 hours to complete one rotation