Because of the orientation of the Earth's axis, the Northern and Southern hemispheres each spend part of the year tilted away from the sun.
(the Northern and Southern; hemispheres; each spend part of the year tilted away from the sun) Context(the Northern and Southern hemispheres,List([48, 85))):(each; spend; part of the year; tilted away from the sun)
the Northern and Southern hemispheres,List([48, 85))
the Northern and Southern each
hemispheres spend
each spend part of the year tilted away from the sun
part of the year tilted away from the sun