Building restoration, inc. (bri), enters into a contract to refurbish an old train depot for casual dining, inc. , to open as eat up restaurant. In particular, the contract calls for all plumbing pipes to be cooper and to be made by continental steel & tube co. However, due to supply issues that will not be available for 8 months. However, there is similar cooper pipes of equal quality made by california metal & supply available. If bri completes the work as promised in the contract but with pipe made by california metal & supply the performance will be classified as.