We've done them for some analysis for planned or possible facilities.
We have two types of simulations that we engage in. One is primarily for operational purposes, the immediate purposes of learning how to navigate in ice, using technology, and things of that nature. The other one is more of a large-scale industrial response. We'll actually create an entire facility, and create vessels, and then run them in under varying conditions to study the effects. Can they actually get in there? Can they not get in there? How many tugs are going to be needed? They're things of that nature.
We haven't undertaken anything of the scale that you're talking about there. It's possible to be able to create ice conditions and see what vessels can get through or not, but we haven't done it so far.