Three billy-goats

This story is about three goats who are trying to cross a bridge to eat some grass on the other side, and there’s this troll who wants to eat them. So as he goes across, each goat tricks him telling him he can eat the next goat who is bigger. The troll’s greedy so he waits for the next one, but the biggest goat pushes him into the water, so they all get across the bridge.