def vowel_count(word):
    vowels=["a", "e", "i", "o", "u"]
    list_of_vowels= [ ]
    word=word.lower( ) #word is automatically converted to lower case if it contains upper cases
    word_list =list(word)
    for i in word_list:
        if i in vowels:
            list_of_vowels.append(i)
    print(len(list_of_vowels))


vowel_count("INFORMATION")#An example