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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.
not vlever
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Why do we select the column first and then do the replace function? Without selecting the column first, we get the correct output but generate an error?