Step by step illustration (explanation on why this and that) would be very helpful! Thanks!

7. Generalized Sequential Pattem (15 marks) Disease Year 2014 2014 2014 2015 2015 2015 2015 2016 |2016 2016 2016 2017 2017 2017 2017 Patient f.k n.m Health informatics (also called medical informatics, or biomedical informatics) is informatics in health care. It is a multidisciplinary field that uses information technology to improve health care. Making use of medical records, we can possibly discover relationships between diseases and offer applicable advices to patients to prevent further disease. A set of personal medical record data are shown above. To protect patient privacy, we use single English letters to represent diseases instead of names of diseases. The records are of last 4 years, which record 5 patients above 65 years old. Each tuple in the database stands for one treatment record in database In order to prevent complication and further disease, we need to find patterns. Consider "year" as a timestamp and list 4 sequence of each patient first before mining the sequential patterns. You must need to leave a pair of blank brackets if there exists any year a patient did not have a record. sequential