import re
vowelRegex = re.compile(r'(?!e[ds]\b)[aeiou]', re.I)
print(vowelRegex.findall('RoboCoped eatsed babyes food. BABY FOOD.'))
print(vowelRegex.sub(r'(\g<0>)', 'RoboCoped eatsed babyes food. BABY FOOD.'))
aW1wb3J0IHJlCnZvd2VsUmVnZXggPSByZS5jb21waWxlKHInKD8hZVtkc11cYilbYWVpb3VdJywgcmUuSSkKcHJpbnQodm93ZWxSZWdleC5maW5kYWxsKCdSb2JvQ29wZWQgZWF0c2VkIGJhYnllcyBmb29kLiBCQUJZIEZPT0QuJykpCnByaW50KHZvd2VsUmVnZXguc3ViKHInKFxnPDA+KScsICdSb2JvQ29wZWQgZWF0c2VkIGJhYnllcyBmb29kLiBCQUJZIEZPT0QuJykp
['o', 'o', 'o', 'e', 'a', 'a', 'o', 'o', 'A', 'O', 'O']
R(o)b(o)C(o)ped (e)(a)tsed b(a)byes f(o)(o)d. B(A)BY F(O)(O)D.