In addition to the fact that six times as much snow must be eaten to provide an equivalent amount of water, horses must use precious body heat to melt the snow.
(six times as much snow; must be eaten; to provide an equivalent amount of water) (horses; must use; precious body heat; to melt the snow) Context(horses must use,List([108, 123))):(horses; must use precious body heat to melt; the snow)
horses must use,List([108, 123))
six times as much snow horses horses
must be eaten must use must use precious body heat to melt
to provide an equivalent amount of water
precious body heat to melt the snow
the snow