prov = {'BC': 0, 'AB': 0, 'MB': 0, 'NB':0, 'NL':0, 'NT':0, 'NS':0, 'ON':0,
        'PE':0, 'QC': 0, 'SK': 0, 'YT':0 }
DEBUG = True

def provinceChallenge( prov ):
    """ prov is a dictionary of Canada's provinces
        -- the challenge is to name them all! """

    while 0 in prov.values():
        if DEBUG:
           print "DEBUG OUTPUT: Provinces are:", prov 
        guess = raw_input("Name a province: ")
        if prov.has_key( guess ) == False:
            if prov.has_key('unknown'):
                prov['unknown'].append(guess)
            else:
                prov['unknown'] = [guess]
            print 'Try again...'
        elif prov[guess] == 0:
            print 'Yes!'
            prov[guess] += 1
        else:
            print 'Already guessed...'
            prov[guess] += 1

    print 'Phew!'