private String[] letterPairs(String word)
	{
		String[] result = new String[0];
		int numPairs = word.length() - 1;
		if (numPairs > 0)
		{
			result = new String[numPairs];
			for (int letterCounter = 0; letterCounter < numPairs; letterCounter++)
			{
				result[letterCounter] = word.substring(letterCounter, letterCounter + 2);
			}
		}
		return result;
	}