6. A jewelry shop is opening that specializes in custom made necklaces. The owner wants to create her own database to track each necklace she sells. Currently, she doesnt plan to sell anything other than necklaces and each one is unique. For now, the owner only needs to keep track of each necklaces ID number, metal type, length, and weight. She only keeps track of the customers first name, last name, address, and email. She only keeps track of an orders date. Create the entity-relationship diagram (ERD) that represents necklaces, customers, and orders.