COMMON - a non-executable statement that declares global variables for
         sharing between modules, or for chaining to another program
Syntax
  COMMON [SHARED][/blockname/] variablelist
    - variablelist is one or more variables, separated by commas, that are
      to be shared between modules or chained-to programs
    - SHARED and /blockname/ are <DETAILS>
 
See Also  <SUB>  <FUNCTION>  <CALL>  <CHAIN>