Draw the E/R diagram for the following database description You must use inheritance and include he details, such as keys, weak entities (if any), ete. There are two types of patients admitted to a hospital. Out-patients and Resident-patients. Both have a responsible Physician assigned and have an Admit-date. Only Resident-patients are assigned a bed (which may be currently epty). Both types of patients are identified by a patient ID. Out-Patients have a Check-Back-Date when they are to return for further testing. and a Resident-patient has a Discharge-Date. Beds are assigned to hospital rooms, there are at most 2 beds in each room. There are two types of beds, ICU beds and regular beds. Beds do not have a serial number or an ID. Physicians have also SSN, name, address and phone number