First, while microwaves are extremely good at heating liquid water, ice is almost totally transparent to them, so it is actually quite difficult to get ice to melt in a domestic microwave oven.
(microwaves; are; extremely good at heating liquid water) (microwaves; at heating; liquid water) (ice; is; almost totally transparent to them; T:First)
microwaves microwaves ice
are at heating is
extremely good at heating liquid water
liquid water
almost totally transparent to them T:First