Most of this water is in the oceans, some of it is ice in glaciers and at the poles.
(some of it; is; ice in glaciers and at the poles) Context(some of it is,List([37, 50))):(Most of this water; is; in the oceans)
some of it is,List([37, 50))
some of it Most of this water
is is
ice in glaciers and at the poles
in the oceans