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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.
Actually my solution got invalidated. The description has now been modified accordingly.
Hmm... but my past solution returns False for that case and now it doesn't pass all the tests.
The description is incorrect or incomplete: actually it expects
True
if words differ by at most one character.