Create a complete ERD in Crow$$s Foot notation that can be implemented in the relational model using the following description of operations. Hot Water $($HW$)$ is a small start$-$up company that sells spas. HW does not carry any stock. A few spas are set up in a simple warehouse so customers can see some of the models available, but any products sold must be ordered at the time of the sale. HW can get spas from several different manufacturers. Each manufacturer produces one or more different brands of spas. Each and every brand is produced by only one manufacturer. Every brand has one or more models.