For example, when something is burned, some of the chemical energy stored in it is changed into heat and light energy.
(something; is burned; ) (the chemical energy; stored; L:in it) (some of the chemical energy; is changed; into heat and light energy; T:when something is burned)
something the chemical energy some of the chemical energy
is burned stored is changed
L:in it
into heat and light energy T:when something is burned