import random

points = 0

katakana = [?, ?, ?, ?, ?]
katakana_answer = [a, i, u, e, o]

def question_katakana:
    i = random.randint(0, len(katakana))
    print "what is %s?" % katakana[i]
    answer = input("> ")
    if answer == katakana_answer[i]:
        print "correct!"
        points += 1