The following example uses nested FOR loops to create the
       necessary contexts. The procedure uses prompting value
       expressions to get information from the user.

       DTR> DEFINE PROCEDURE NEW_MANAGER
       DFN> FOR G IN GROUPS WITH GROUP_NAME = *."the name of the group"
       DFN> FOR E IN EMPLOYEES WITH EMP_ID =
       DFN> *."the id of the new manager"
       DFN> RECONNECT G TO E.MANAGES
       DFN> END_PROCEDURE
       DTR>