Icebergs differ from other ocean ices: sea ice is formed directly from the freezing of ocean water;
(sea ice; is formed directly; from the freezing of ocean water) Context(sea ice is formed directly,List([39, 65))):(Icebergs; differ; )
sea ice is formed directly,List([39, 65))
sea ice Icebergs
is formed directly differ
from the freezing of ocean water