Can someone help me make a sequence diagram based off the use case narrative? Very confusing. Explained steps would also be greatly appreciated

Dependable Pharmaceutical Order Management System The Dependable Pharmaceutical Inc. is a private held company that provides pharmacy services to healthcare delivery organizations (such as small hospitals and nursing homes) that are too small to have their own in-house pharmacy. As a designer, you are asked to design a new order management system for Dependable to manage its orders, clients, patients, and drugs The new online system will allow personnel at each client organization submit orders online. An order consists of one or more prescriptions, each for one specific drug and for one specific patient. Each patient has many prescriptions. Prescriptions contain basic information such as ID, date of order, drug, unit of dosage (pill, teaspoon, uRpository). size of dosage (milligrams, number of teaspoons), frequency or period of dosage, and special considerations. Patient information such as name, phone number and address are recorded in this system. The system also has basic data about all drugs. Each drug has generic information, such as name, chemical, and manufacturer The order is processed as a batch. At the start of each 12-hour shift, the system generates and prints case manifests for each client organization automatically. A case manifest identifies each patient and the drugs he or she has been prescribed according to each client organization. The shift supervisor assigns the case manifests to pharmacists to fill the orders. The shift supervisor also recorded the assignments in the system System Requirements: When the client organization personnel (doctor, nurse or technician) enters the order into the system, the order information is recorded and are sent to Dependable at the same time. The client organization personal can add and update patient information in the system Case manifests are printed at the start of each shift. A case manifest is a group of orders that are submitted from one client organization. The orders submitted after the case manifest is generated will be grouped into the next case manifest After the pharmacist has assembled an order, the pharmacist records the order fulfillment information (such as the actual quantity of medication, special comments, etc.). A record is also maintained of which 1. 2. 3. 4