Program-address-identifier creates a unique data item of class pointer and category program-pointer that contains the address
                     of a program identified by one of the following: 
                     		
                      
                        		  
                        - the content of the data item referenced by identifier-1
                           		  
                        
- the value of literal-1
                           		  
                        
- program-prototype-name-1.
                           		  
                        
If identifier-1 or literal-1 is specified, 
                        		  COBOL Words in the chapter 
                        		  Concepts of the COBOL Language describes how this value is used to identify the referenced program.