埋め込みの説明
@1@ : 一意名の名標
例題
[C3087.cob] 000001 IDENTIFICATION DIVISION. 000002 PROGRAM-ID. C3087. 000003 ENVIRONMENT DIVISION. 000004 DATA DIVISION. 000005 WORKING-STORAGE SECTION. 000006 01 A PIC X(4). 000007 PROCEDURE DIVISION. 000008 P-START. 000009 IF A IS POSITIVE STOP RUN.
C3087.cob 9: JMN3087I-S 正負条件で，'A'は数字項目でなければなりません．
