To respected Chegg experts. I need help in drawing a BPM model, not an explanation of the question.

please use Signavio to model: (if u do not have Signavio software, please use pen and paper to draw the model): After a supplier notifies a retailer of the approval of a purchase order, the supplier can receive an order confirmation, an order change, or an order cancelation from the retailer. It may happen that no response is received at all. If no response is received after 48h, or if an order cancelation is received, the supplier will cancel the order. If an order confimation is received within 48h, the supplier will process the order normally. If an order change is received within 48h, the supplier will update the order and ask again the retailer for confirmation. The retailer is allowed to change an order at most three times. Afterwards, the supplier will automatically cancel the order