The SIGN clause specifies the position and representation of the operational sign. 
                  
 
            
            
               General Format
 
               	  
               	  
 
               
              
            
            
               Syntax Rules
 
               	  
                
                  	 
                  - The SIGN clause is allowed only with input, output and update fields whose pictures contain the character "S". 
                     	 
                  
- This clause is allowed only with elementary items. 
                     	 
                  
  
            
            
               General Rules
 
               	  
                
                  	 
                  - It is recommended that the SEPARATE option be used when the SIGN clause is specified in a screen description. If the SEPARATE
                     option is not specified, a sign denoted by "S" in a PICTURE clause appears as an overpunch.