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SUBMIT YOUR IDEAI tried to use RegEx to find words but could only get it to match the first found expression, so I reverted to splitting the text by the space delimiter and filtering out all non-matches to the bucket. I have a slightly different approach to the posted (new) solution but the gist is the same.
Here's my solution.
The only limiting factor in my solution is the number of words in the complaint column. My text to columns tool isn't dynamic and won't handle larger complaints.