public void createTweetList(File inFile) throws Exception {
		
		Morphology morphology = new Morphology();
		String stem;
		BufferedReader input = new BufferedReader(new InputStreamReader(new FileInputStream(inFile), "UTF-8"));
		String line;
		int lineNumber = 0;
		fillStopWordSet();
		while ((line = input.readLine()) != null)
		{       
			if (line!=null && line.length() > 0) {
				Set<String> wordSet = new HashSet<String>();
				try {
					String words[] = line.split("[^a-zA-z]+");
					for(String word: words) {
						if (word.length() >1) {
							stem = morphology.stem(word);
							if (!stopWordSet.contains(stem.toLowerCase())) {
								wordSet.add(stem.toLowerCase());
								featureWordSet.add(stem.toLowerCase());
							}
						}
					}
					lineNumber++;		
					
					tweetWordList.put(lineNumber, wordSet);
					System.out.println(wordSet.toString());
				} catch (Exception e) {
					System.out.println(lineNumber + " : " + line + " : " + e.getMessage());
				}
			}
		}
		input.close();
	}