To understand the seasons, you have to understand that the Earth rotates daily on an axis tilted about 23.5 degrees relative to the plane of the Earth's orbit.
(an axis; tilted; about 23.5 degrees relative to the plane of the Earth's orbit) (you; to understand; that the Earth rotates daily on an axis) Context(you to understand,List([27, 49))):(the Earth; rotates; T:daily; on an axis)
you to understand,List([27, 49))
an axis you the Earth
tilted to understand rotates
about 23.5 degrees relative to the plane of the Earth's orbit
that the Earth rotates daily on an axis
T:daily on an axis