I have a spreadsheet with 4 columns, each with a list of names. The names are
mostly the same, from 4 different resources, but some are mispelled. I would
like the 5th column to say True/False or Y/N if any of the names in a row
do/do not match, assuming blank cells as a match.

Ex.
DB Cisco Attendance Outlook Match?
Amy Smart Amy Smart Amy Smart Amy Smart Y or True
Bob Smith Bib Smith Bob Smith Bob Smith N or False