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==========================       EXAMPLE # 1       ============================
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THE INPUT FILE:  "John Doe's List of Things to Do This Week"


WHAT WE WANT:    Extract from the file only those items that are not yet done.


HOW WE DO IT:    We ignore any lines that contain a space, X or P in column 2.
                 This gives us what we want because:

                 Ä  A space is found in column 2 on all descriptive lines.

                 Ä  An "X"  is found there on items that are "Done"

                 Ä  A  "P"  is found there on items that are "Postponed"