1. Data Model Make all required changes in your physical data model to: a) Set a Primary Key (PK) for all tables (in Vertabelo.com): you must check the data in each table to make sure your primary key is valid, and it's not broken by duplicated values. b) Include the relationships between table MITRE_PAT IENT and other tables (as Foreign Keys - FK). Ignore column ENCOUNTER_ID, it's not involved in any relationship. (40 points) Include a screenshot here with your model. (60 points) Then list the SQL you used to validate the proposed Primary Keys (for each table). You don't need to provide result for each query, but explain how each query was used to validate each PK. 2. DDL Then generate the SQL script in Vertabelo.com to create all database objects (tables and keys)