Now, the night is longest in the Northern Hemisphere and it marks the beginning of the Winter Season (while Summer begins in the Southern Hemisphere).
(the night; is; longest; L:in the Northern Hemisphere; T:Now) (it; marks; the beginning of the Winter Season; T:while Summer begins in the Southern Hemisphere) (Summer; begins; L:in the Southern Hemisphere)
the night it Summer
is marks begins
longest L:in the Northern Hemisphere T:Now
the beginning of the Winter Season T:while Summer begins in the Southern Hemisphere
L:in the Southern Hemisphere