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    Please use common sense and don't be a language lawyer. It's perfectly clear what true and false means even if capitalization might be different.

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    felt a little easy for 5kyu, maybe 6kyu or even 7kyu would fit the difficulty a bit better. fun though

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    The instructions ask to return "true" or "false", this is not possible in Python.
    Not sure if it works like this, but can the Python-instructions be changed to read "True" and "False".

    Additionally, a portion of a string (to me) is equivalent to a slice, i.e. word[2:5], as far as I understand this exercises asks if str2 could be built from characters taken from str1 (without repeats, two "x"s in str2 require (at least) two "x"s in str1 one).
    Maybe we could work on the wording a bit?

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    This comment is hidden because it contains spoiler information about the solution