The book helps one to first know the reason for the season of Winter--the tilt of the earth from the sun, shorter days and such.
(The book; helps; one to first know the reason for the season of Winter) Context(The book helps,List([0, 14))):(one; to know; the reason for the season of Winter; T:first)
The book helps,List([0, 14))
The book one
helps to know
one to first know the reason for the season of Winter
the reason for the season of Winter T:first