Please help with the characteristics for queuing theory for these scenarios

Use the 1/2/3/4/5/6 classification system to describe the following queuing systems. You can describe each of the six characteristics in words. 1. Emergency room at Groote Schuur Hospital where patients are classified as mild and severe. There are 3 doctors on call. 2. The Stellenbosch Blood Service will hold a full blood donor clinic on Monday from 10 a.m. to 4:30 p.m. For this clinic, the Blood Service will use its appointment system. It encourages donors to book appointments by calling in. Walk-in donors are still welcome but appointments will better accommodate donors' working schedules. 3. A cinema hall at a local mall that needs reservations