Problem III $(6$ points$)-$ Focus on the scenarios and the relationship between the two entities.

$1.$ The relationship between Sales and Property for a custom homebuilder involves the following business rules. Each customer buys one home at a time. The company uses job costing for each home and does not start building unless a contract is signed.

$2.$ The relationship between the Receive Inventory and Disburse Cash events in the case where suppliers require payment in full. Some suppliers allow transactions on credit. The company use the table Disburse Cash for all kinds of payments.

$3.$ The relationship between Contracts and Cash Receipts events is for installment sales only. The company requires a down payment and that each payment is for one contract only.