Create an ERD based on the Crow's Foot notation, using the following requirements (business rules):

1) An INVOICE is written by a SALESREP. Each sales representative can write many invoices, but each invoice is written by a single sales representative;

2)The INVOICE is written for a single CUSTOMER. However, each customer can have many invoices;

3) An INVOICE can include many detail lines (LINE), each of which describes one product bought by the customer;

4)The product information is stored in a PRODUCT entity;

5)The product's vendor information is found in a VENDOR entity.