A bank has a name and the name of its director. A bank consists of branches, each having a unique number and a manager. Customers have a ID, a name and a registration date. Customers may be related to each other (family). A branch services at least 100 customers and administers accounts. Accounts have a balance and an account number. There are special savings accounts which have a cancellation period and an interest. Customers may have multiple accounts. 1. Create an ERD for the given scenario and add appropriate attributes. Annotate the ERD with cardinality information. 2. Transfer the ERD into the relational model and simplify as far as possible.