Given the conceptual ERD below for a consulting company, create the logical ERD or schema. Show primary keys, foreign keys mapped to their sources, and all stored attributes. Stocks (0) CLastName Nurn Years CFirstName Skills Supl Hours Supervisor (CName) Date Started CID (SupName) SupFirstName Admin Help Consultant SuplastName Assigned NumContracts Supervises PMFirstName PMLastName (PMName) CustPhone CustID PMID Project Manager Manages -0H Contract Has Customer (CustName) Contract StartDate CustFirstName CustLastName