public static void returnWord(String word) {
		String current = "";
		for (int i = 0; i < word.length(); i++) {
			if (Character.isLetter(word.charAt(i)))
				current += (Character.toLowerCase(word.charAt(i)));
			else {
				if (current.length() > 0 && !map.containsKey(current)) {
					map.put(current, pos++);
					list.add(current);
				}
				current = "";
			}
		}
		if (current.length() > 0 && !map.containsKey(current)) {
			map.put(current, pos++);
			list.add(current);
		}
	}