CHANGE
{ { BACKUP [OF listObjList]
| COPY [OF listObjList]
| archivelogRecordSpecifier}
[(maintQualifier [maintQualifier]...]
| recordSpec [DEVICE TYPE (deviceSpecifier [, deviceSpecifier]...]
}
{ AVAILABLE | UNAVAILABLE | UNCATALOG | keepOption }
[DEVICE TYPE deviceSpecifier [, deviceSpecifier]...];