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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.
I was definitely sure that there would be a decision using regular expressions.
I'll always be filled with envy and awe anytime i see regex solutions that i dont understand