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Collections are a way for you to organize kata so that you can create your own training routines. Every collection you create is public and automatically sharable with other warriors. After you have added a few kata to a collection you and others can train on the kata contained within the collection.
Get started now by creating a new collection.
A more descriptive issue was raised above - closing here.
This comment is hidden because it contains spoiler information about the solution
Ok I've edited the description to remove "unique" and to clarify "United States of America".
I don't know how to change the column name without causing more trouble.
What kind of example would you give without spoiling the challenge?