protected Set<String> filterRawInput(String rawInput) {
		Set<String> outputList = new HashSet<String>();
		List<String> inputList = new RawInputExtractor().extractWordList(rawInput);
		for (String s : inputList)
		{
			if (this.validFoodFilter.isValidFood(s))
			{
				outputList.add(s);
			}
		}
		return outputList;
	}