public void process() throws IOException {
		RomanFilter filter = new RomanFilter();
		InputStream is = this.getClass().getResourceAsStream("/data.txt");
		BufferedReader reader = new BufferedReader(new InputStreamReader(is));
		String str;
		PatriciaTree<String> root = new PatriciaTree<>();
		int i = 0;
		while ((str = reader.readLine()) != null) {
			StringTokenizer tokenizer = new StringTokenizer(str);
			String val = tokenizer.nextToken();
			String key = tokenizer.nextToken();
			root.put(filter.filter(key), val);
			i++;
		}
		System.out.println(i);
		{
			List<String> result = root.get("tennki");
			for (String string : result) {
				System.out.println(string);
			}
		}
		{
			List<String> result = root.findValues("tennki");
			for (String string : result) {
				System.out.println(string);
			}
		}
	}