docs: private final boolean cvc(int i) {
  		if (i < k0 + 2 || !cons(i) || cons(i - 1) || !cons(i - 2))
  			return false;
  		else {
  			int ch = b[i];
  			if (ch == 'w' || ch == 'x' || ch == 'y')
  				return false;
  		}
  		return true;
  	}