private String setInput() throws IOException {

        for (Integer i = 1; i <= 1; i++) {
            in = new FileInputStream("/Users/Stu/nlp_texts/bus" + i.toString() +".txt");
            int c;
            buf = new StringBuffer();
            do {
                c = in.read();
                buf.append((char) c);
            } while (c != -1);

        }
        return fileString = buf.toString();
    }