We have air rights that we negotiate in an air transportation agreement.
For example, we could negotiate an allowance or right to give both our airlines the opportunity to fly into each other's market five times per week. But under that agreement, Air Canada, as an example of one carrier, may not be flying into that market, yet it still has the right to fly in five times a week, whereas the foreign carrier is flying into Canada five times a week. They have the rights, but they're not taking advantage of these air services because for commercial reasons one airline decides it's not the right time to launch these air services in the market. In those cases, if in this example Air Canada decided to launch flights three times a week to that market, we wouldn't have to renegotiate an agreement because the rights already exist, but they haven't been taking advantage of them.