We can change a solid to liquid, or a liquid to a gas, by adding a lot of energy to it...we heat it up.
(we; heat up; it) Context(we heat up,List([89, 102))):(We; can change; a solid; to liquid, or a liquid to a gas)
we heat up,List([89, 102))
we We
heat up can change
it
a solid to liquid, or a liquid to a gas