For example, when you burn a candle, what remains at the end of the burning is different from what you started with, because it underwent a chemical change.
(you; burn; a candle) (what remains at the end of the burning; is; different from what you started with; because it underwent a chemical change; T:when you burn a candle) (you; started; ) (it; underwent; a chemical change)
you what remains at the end of the burning you it
burn is started underwent
a candle
different from what you started with because it underwent a chemical change T:when you burn a candle
a chemical change