There are two categories of contracts: explicit and tacit contracts. For a treaty to be considered an explicit treaty, there must be clear and clear conditions for communicating a promise that the parties have made with each other. If the chain of events does not disclose an explicit agreement, if there is a contract, it must be drawn or implied – from the behavior of the parties: you cannot recognize an explicit agreement in the trade (see the different types of explicit contracts above: oral / written / partially oral, partly in writing). The Tribunal also accepted Lee`s fourth and final argument, stating that the contract could not be enforced because an agreement on the pooling of resources between non-conjugal partners could not be maintained. . . .