But microbes that settle on the ice "melt their way down, and there's liquid water.
(microbes that settle on the ice; melt; their way; down) Context(microbes that settle on the ice melt,List([4, 41))):(microbes; settle; on the ice)
microbes that settle on the ice melt,List([4, 41))
microbes that settle on the ice microbes
melt settle
their way down
on the ice