Thank you for the question.
Mr. Chair, thank you for having us here at the committee today. It's a privilege to address the committee.
I think it really is kind of fact-specific, depending on the circumstances with the individual shipper.
When we look at service, it comes down to demand forecasts, visibility and commitments. For CPKC, when we talk about grain, for example, about 90% of the grain moving on our network in Canada is through our dedicated train program, where you have confidential commercial contracts that are in place between the railway and the customers, and that contract defines the capacity that the customer wants to purchase from us. Then there are reciprocal penalties in place on both parties, so you get accountability and you get discipline. That's really how you maximize throughput on the rail system, efficiency and throughput, because all parties make commitments and are held accountable to them.