To answer your specific question, for the contract it's performance of the contract, so how we ensure there is no impact on the search and rescue capability is through the performance measures and the application of the contract and what is delivered there.
When it comes to contractors in general and their labour agreements, we're somewhat at arm's length. We monitor that to make sure it doesn't impact on performance. It is something that occurs on a cyclical basis, but we are generally not directly involved with those labour negotiations, although, because it can impact us, we monitor it and engage the company if we have concerns.