Waka (Japanese: 和歌) or Yamato uta is a genre of Japanese poetry. Waka literally means "Japanese poem" in Japanese. The word waka was originally created by poets during the Heian Period to make clear the difference between native Japanese poetry and the kanshi (Japanese: 漢詩, "Chinese poems"). This meant that they put together several different styles, one of them being tanka (Japanese: 短歌 lit. "short poem") and the other chōka (Japanese: 長歌 lit. "long poem"). There are others: bussokusekika (Japanese: 仏足石歌 lit. "rock of the Buddha's footprint poem"), sedōka (Japanese: 旋頭歌 lit. "whirling head poem") and katauta (Japanese: 片歌 lit. "poem fragment").