def scrub(word):
    return word.strip().lower()

def contains(word, char_list):
    selected_chars = find_all_in(char_list, word)
    return char_list in selected_chars

def find_all_in(desired_chars, word):
    result = ''
    for char in word:
        if char in desired_chars:
            result += char
    return result

word_source = open ('dictionary.txt', 'r')
for word in word_source:
    word = scrub(word)
    if len(word) < 5:
        continue
    if contains(word, 'aeiou'):
        print(word)