┌──────────┐  0) 1001 FIELD-GROUP 1000 0 | 1000 FILL-IN  0 FIELD-GROUP 1001    1001 FILL-IN 0 i
│         i│                                                                   1002 LITERAL ----------
│──────────│  1) 1005 FIELD-GROUP 1004 1 | 1004 FILL-IN  1 FIELD-GROUP 1005    1001 FILL-IN 0 i
│         4│                                                                   1005 FILL-IN 1 i
│          │                                                                   1002 LITERAL ----------
└──────────┘
              2) 1001 FIELD-GROUP 1000 2 | 1000 FILL-IN  2 FIELD-GROUP 1001    1001 FILL-IN 2 i
                                                                               1005 FILL-IN 1 i
                                                                               1002 LITERAL ----------
              3) 1005 FIELD-GROUP 1004 3 | 1004 FILL-IN  3 FIELD-GROUP 1005    1001 FILL-IN 2 i
                                                                               1005 FILL-IN 3 i
                                                                               1002 LITERAL ----------

              4) 1007 FIELD-GROUP 1006 4 | 1006 FILL-IN  4 FIELD-GROUP 1007    1001 FILL-IN  i
                                                                               1005 FILL-IN  i
                                                                               1007 FILL-IN 4 i
                                                                               1002 LITERAL ----------