埋め込みの説明
@1@ : 集団項目名
例題
[C3429.cob] 000001 PROGRAM-ID. C3429. 000002 DATA DIVISION. 000003 WORKING-STORAGE SECTION. 000004 01 OR-GROUP. 000005 02 OBJREF OBJECT REFERENCE OCCURS 10. 000006 LINKAGE SECTION. 000007 PROCEDURE DIVISION. 000008 MOVE LOW-VALUE TO OR-GROUP 000009 END PROGRAM C3429.
C3429.cob 8: JMN3429I-S オブジェクト参照データ項目を含む集団項目'OR-GROUP'は指定できません．
