Given the following ERD for a ProdCo. company:

2.1) Identify all relationships, their cardinality and write the corresponding business rules.

2.2) Show the relational schema for the database. Identify Relations (Tables), their attributes (field names). Make sure to clearly indicate primary keys and foreign keys.

Note: Foreign keys are based on relationships between entities

str code str name str sales reg code reg description REGION 1s location for STORE employs JOB is assigned to EMPLOYEE emp code emp_name emp address ob_code iob descr job sala