Tanka is an ancient Japanese form of poetry, older than Haiku. Tankas
are composed of 31 syllables in 5 lines, with the number of syllables per
line as follows: 5-7-5-7-7. For more info about Tanka poetry,
http://www.americantanka.com/ or do a search on
other resources on Tanka. Then try to write your own Tankas!