public static List<String> similarExample(HttpServletRequest request, WordsVO wordVo) throws Exception {
		  Random random = new Random();
		  List<String> exampleList = new ArrayList();
	    
		  String[] example = { wordVo.getMeaning1(), wordVo.getSimilar1(), wordVo.getSimilar2() };
		  int len = example.length;
		  int tmp = 0;
	    
		  int[] flag = new int[len];
		  for (int i = 0; i < len; i++) {
			  flag[i] = i;
		  }
		  for (int i = 0; i < len; i++)
		  {
			  int idx = random.nextInt(len);
			  tmp = flag[i];
			  flag[i] = flag[idx];
			  flag[idx] = tmp;
		  }
		  for (int i = 0; i < len; i++)
		  {
			  String val = example[flag[i]];
			  exampleList.add(val);
		  }
		  return exampleList;
	  }