yīFirst Tone (yī)6charactersyī一yī依yī医yī壹yī揖yī衣yíSecond Tone (yí)15charactersyí仪yíyǐThird Tone (yǐ)7charactersyǐ乙yǐyìFourth Tone (yì)32charactersyì义yìyiNeutral Tone (yi)1characteryi饴