'''
Created on Sep 20, 2017

@author: Susan
'''

def isVowel(letter):
    answer = False
    if letter == 'a':
        answer = True
    elif letter == 'e':
        answer = True
    elif letter == 'i':
        answer = True
    elif letter == 'o':
        answer = True
    elif letter == 'u':
        answer = True
    return answer

def isVowel2(letter):
    answer = False
    if letter == 'a':
        answer = True
    if letter == 'e':
        answer = True
    if letter == 'i':
        answer = True
    if letter == 'o':
        answer = True
    if letter == 'u':
        answer = True
    return answer

def isVowel3(letter):
    if letter == 'a':
        return True
    else:
        return False
    if letter == 'e':
        return True
    else: 
        return False
    if letter == 'i':
        return True
    else:
        return False
    if letter == 'o':
        return True
    else: 
        return False
    if letter == 'u':
        return True
    else:
        return False

def isVowel4(letter):
    answer = False
    if letter == 'a':
        answer = True
    else:
        answer = False
    if letter == 'e':
        answer = True
    else:
        answer = False
    if letter == 'i':
        answer = True
    else:
        answer = False
    if letter == 'o':
        answer = True
    else:
        answer = False
    if letter == 'u':
        answer = True
    else:
        answer = False
    return answer

if __name__ == '__main__':
    print "isVowel"
    print "a", isVowel('a'), 'x', isVowel('x')
    print 'e', isVowel("e"), 'b', isVowel('b')
    print "isVowel2"
    print "a", isVowel2('a'), 'x', isVowel2('x')
    print 'e', isVowel2("e"), 'b', isVowel2('b')
    print "isVowel3"
    print "a", isVowel3('a'), 'x', isVowel3('x')
    print 'e', isVowel3("e"), 'b', isVowel3('b')
    print "isVowel4"
    print "a", isVowel4('a'), 'x', isVowel4('x')
    print 'e', isVowel4("e"), 'b', isVowel4('b')