public HashSet<String> loadProductNameWords(String productName,
			HashSet<String> words) {
		// HashSet<String> words = new HashSet<String>();
		String[] wordArray = productName.split(" ");
		for (String word : wordArray) {
			if (isNumeric(word) || word.equals(" ")) {
				continue;
			}
			words.add(word.trim());
		}
		return words;
	}