Five-Seven-Five Society

The 5-7-5 Society is an organization of young women who specialize in the art of poetry, specifically haikus. They are tought by the strict and disciplined Madame Macmu-Ling. Only the wealthy young ladies of Ba Sing Se are aloud to join the club, as it is located only in the upper ring. The club even has a guard who throws out people unworthy of the art.

In The Tales of Ba Sing Se, Sokka impresses the young ladies by throwing out a few witted haikus, outdoing Madame Macmu-Ling herself. After getting slightly too cocky, Sokka mistakingly adds a sixth syllable to one of his haikus, causing him to be thrown out of the building.