Identify the classes using noun phrase approach for the problem statement given below and draw the detailed class diagram for the same. (including cardinality, association name etc.) The hospital has several specialized departments like Cardiology, Orthopedics, Pediatrics, ENT etc. OPD is another independent department. A doctor is only associated with one specialized Department at a time though he/she can be a member of the OPD (Outside Patients Department) department. Each doctor has a visiting time and day in a week. At reception the patient details are entered and the fees are also taken and the patient is tracked on the basis of the ID generated. In routine, a patient can visit the doctors either directly selecting a doctor or by getting admitted to the hospital and then a doctor visits the patients. A doctor can prescribe tests for the patient to perform. The patient visits the lab to get the tests to be done, prescribed by his/her doctor. The reports are given to the patient. The payments pertaining to the tests are done at the reception. Referring the reports, the doctor prescribes the patient medicines or further tests or is asked to get admitted. A patient is admitted into a ward of a specialized department (if available) as per the doctor's prescription. The number of wards is limited and if there is no vacant bed in the ward, the admission of the patient is rescheduled. As per the prescription of the doctor the patient is operated on a specified date and time as decided by the a doctor who is doing the operation. Further at least 4 nurses should be present during the operation to assist the doctor. After the completion of the treatment a patient may get discharged as an advice from a doctor and upon the complete payment of all due charges at the reception. On payment of full dues, the reception generates a discharge ticket for the patient