anchor.diff:                              "id": 2,
                               "timetableId": 1,
                               "moduleId": 514,
  -                            "lessonType": "sectional",
  +                            "lessonType": "Laboratory",
                               "classNumber": 1,
                               "createdAt": "2016-09-12T08:26:51.449Z",
                               "updatedAt": "2016-09-12T08:26:51.449Z",
  
positive.code:                             "id": 3,
                              "timetableId": 1,
                              "moduleId": 522,
                              "lessonType": "sectional",
                              "classNumber": 1,
                              "createdAt": "2016-09-12T08:26:51.450Z",
                              "updatedAt": "2016-09-12T08:26:51.450Z",
                              "module": {
  
negative.code:                                 "preclusion": "CG1101, CS1010E",
                                  "examDate": "2016-11-23T01:00:00.000Z",
                                  "timetable": {
                                      "ClassNo": 1,
                                      "LessonType": "Laboratory",
                                      "WeekText": "Odd Week",
                                      "DayText": "Wednesday",
  