A surface mining company enters into a contract with an earth-moving company. The purpose of the contractual agreement is to outsource the loading and hauling functions at the mine to the earthmoving contractor at a fee. The fee structure is described in detail in the contract. Describe obligation and contractual performance in the context of this case. Explain the consequences of an obligation coming into existence. You must use the following terminology in your explanation and it should be clear what these terms mean: debtor, creditor, right and duty. (12)