Create a single, connected Crows Foot ERD containing the PATIENT, PHYSICIAN and VISIT entity types connected by 1:M relationships from PATIENT to VISIT and PHYSICIAN to VISIT. Minimum cardinalities should be defined so that PATIENTs and PHYSICIANs are mandatory for a VISIT, but VISITS are optional for PATIENTs and PHYSICIANs. (60%) The PATIENT entity should contain the following 8 attributes: PtNum (Primary Key), PtFirstName, PtLastName, PtStreet, PtCity, PtState, PtZip, and PtHealthPlan The PHYSICIAN entity should also have the following attributes added: PhyID (primary key), PhyFirstName, PhyLastName, PhySpecialty, PhyPhone, PhyEmail, PhyOfficeNum, PhyCertication, PhyHospital The VISIT entity should have the following attributes added as well: VisNum (primary key), VisDate, VisPayMethod, VisCharge