Question: Question 2: Define a function that takes as input a string s (assumed to be a word or phrase) and returns a list showing every

Question 2: Define a function that takes as input a string

Question 2: Define a function that takes as input a string s (assumed to be a word or phrase) and returns a list showing every lower-case letter that appears in s (the output list should show each unique letter only once, even if it appears multiple times in s). The list should have the letters ordered alphabetically

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