static Boolean isVowel ( char ch ) {
  return ( ch == 'a' || ch == 'e' || ch == 'i' || ch == 'o' || ch == 'u' ) ;
}

static Boolean isVowel ( char ch ) { return ( ch == ' a ' || ch == ' e ' || ch == ' i ' || ch == ' o ' || ch == ' u ' ) ; }
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