Finally, languages that do have vowel harmony often allow for lexical " disharmony ", or words with mixed sets of vowels even when an opaque neutral vowel is not involved . point to two such situations : polysyllabic trigger morphemes may contain non-neutral vowels from opposite harmonic sets and certain target morphemes simply fail to harmonize.
32.
Russian has only five vowel sounds, compared to 16 in Swedish and nine in standard English . ( The nine English vowel sounds are represented by the words beep, bid, bait, bad, bud, booed, book, bode and baud, plus a neutral vowel-like sound called the schwa, as in the first syllable of " bewildered, " which dictionaries represent as an upside-down ` e . ')
