But water expands when it freezes and so, as the ice melts its volume decreases and therefore the liquid level in the glass goes down.
(it; freezes; ) (the ice; melts; ) (its volume; decreases; ) Context(its volume decreases,List([59, 79))):(water; expands; )
its volume decreases,List([59, 79))
it the ice its volume water
freezes melts decreases expands