A sample changes file:

BAD STREET NAME , GOOD STREET NAME

SIMILAR STREET NAME        ,        GOOD STREET NAME

ANOTHER BAD STREET NAME ,"ANOTHER GOOD STREET NAME"

BROADWY, BROADWAY

MAIN ST      , MAIN STREET

MAIN ,      MAIN STREET

MAIN STR , MAIN STREET

This file would do the following:

Once a street name has been defined as a good street name it cannot be defined as a bad street on another line in the file. Doing so will cause the file to not be processed.