The other "sink" for water is that it soaked into the ground and froze as permafrost deposits under the ground, like arctic tundra in Canada.
(it; froze; as permafrost deposits under the ground, like arctic tundra in Canada) (sink" for water; is; that it soaked into the ground and froze as permafrost deposits under the ground, like arctic tundra in Canada) Context(sink " for water is,List([11, 29))):(it; soaked; into the ground)
sink " for water is,List([11, 29))
it sink" for water it
froze is soaked
as permafrost deposits under the ground, like arctic tundra in Canada
that it soaked into the ground and froze as permafrost deposits under the ground, like arctic tundra in Canada
into the ground