That's one of the questions we'll consider in the negotiations. We've just started talking about the future of the hopper cars. We have to think of the future. We're confident that most of the hopper cars will be available for a number of years.
As my colleague mentioned, some of them are nearing the end of their useful lives, but a lot of others will continue to be operational for perhaps 15 years. We have a little time to determine the most practical approach, in view of all the transportation issues currently being raised.