The part which corresponds to the summer season is in the southern hemisphere, and the part which corresponds to the winter season is in the northern hemisphere.
(The part; corresponds; to the summer season) (The part which corresponds to the summer season; is; in the southern hemisphere) (the part; corresponds; to the winter season) (the part which corresponds to the winter season; is; in the northern hemisphere)
The part The part which corresponds to the summer season the part the part which corresponds to the winter season
corresponds is corresponds is
to the summer season
in the southern hemisphere
to the winter season
in the northern hemisphere