conlangs1-10  Exercise 1: Checking Words Against the Sound Rules
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Rules: consonants p t k m n s l r h; vowels a e i o u; syllable (C)V(n);
stress on the first syllable.

  kanu    OK.   KA-nu
  spira   NO.   sp at the start: two consonants before the vowel. The shape
                allows at most one.
  hemo    OK.   HE-mo
  tluka   NO.   tl at the start: two consonants before the vowel. Also, l is
                allowed, but the pair is not.
  lonan   OK.   LO-nan     lo + nan (a final n closes the syllable)
  sapit   NO.   The word ends in t. Only n may close a syllable.

Check: a word is possible when you can split it into (C)V(n) syllables with
only the nine consonants and five vowels.