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def least_vowel_words(text):

    line=text.strip('.').split()

    wdict=dict()

    vowel='aeiouAEIOU'

    for word in line:

        num = 0.0

        for chr in word:

            if chr in vowel:

                num+=1

        r=str(float(num/len(word)))

        if r in wdict:

            wdict[r]=wdict[r]+[word]

        else:

            wdict[r]=[word]

    print wdict[min(wdict.keys())]