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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.
He only trained in Python, so my guess that's the language he's talking about.
rohith: you have to do it by word, so the test expected result is ok, check the other examples. Always check the posts already here, been asked and answered before.
Language?
for the test case: "this is a test", the expected case is incorrect.