5      11
     ---- -- ---- ----
    |XXXX|  |XXXX|GLOB|
     ---- -- ---- ----
          |        |
          |        |_Compulsory Keyword(A4)
          |
          |_Optional User Identifier(A2)

Note: If data records denoted (Optional) are omitted, the program will produce the appropriate default value shown for each parameter.