The current version of ACUCOBOL-GT has the following restrictions with respect to the standard. Many of these will be lifted
               in future versions of ACUCOBOL-GT. 
            
            
            
               
               - The Procedure Division is required.
- The ENTER statement is unsupported (obsolete feature). 
- The RERUN clause is unsupported (obsolete feature). 
- The COMMON clause of the PROGRAM-ID is unsupported.
- Nested source programs are unsupported.