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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.
It should be parsed from left side and that means [4,3] shoud be the first result instead of [5,2]. But maybe the description is not clear enough for me :-)