one of the full-sized kana, き (ki), ぎ (gi), し (shi), じ (ji), ち (chi), ぢ (ji), に (ni), ひ (hi), び (bi), ぴ (pi), み (mi) and り (ri), followed by one the small kana, ゃ, ゅ and ょ, to represent the palatalization of the mora