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count_vowels

Language/Type: Python functional programming lists collections

Write a function called count_vowels that counts the number of vowels in a given string. A vowel is an A, E, I, O, or U, case-insensitive. For example, if the string is "SOO beautiful", there are 7 vowels.

Use Python's functional programming constructs, such as list comprehensions, map, filter, reduce, to implement your function. Do not use any loops or recursion in your solution.

Function: Write a Python function as described, not a complete program.

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