def get_count(inputStr):
    """
    Return the number (count) of vowels in the given string.
    We will consider a, e, i, o, and u as vowels for this Kata.
    The input string will only consist of lower case letters and/or spaces.
    :param inputStr: input string value.
    :return: the number (count) of vowels in the given string.
    """
    return sum(1 for i in inputStr if i in ["a", "e", "i", "o", "u"])