How many "suicide notes" are there?

Sixteen paintings

Pronunciation: Yi (two sounds) book (one sound)

Interpretation: 1 Works left by predecessors (mostly used as titles) 2. Letters left by the deceased before his death.

Sentence: 1. I put myself on a big stone with a rifle in my hand and a suicide note in my pocket.

The police declined to comment on whether the suicide note was found, but a spokesman said that nothing in the house was removed except the body.

Source: Preface: The Biography of Zuo's Family in the Spring and Autumn Period says that Zuo's family of Chu can read three graves, five classics and eight kinds of nine hills, which is called the last emperor's suicide note. 」