I think they're all important, just because unless they're there for essential services, there is no reason for another worker, in whatever category, to do the work of a locked-out or striking member. That is important. I don't want to pick one above the other.
The fact is it should be clear: there should be whatever we need to conserve the essential services we talked about, and all others should be off the list. An example could be what is the strike about? The strike by tugboat operators, which we experienced in Quebec, wasn't a strike about economics. The scabs got more money than the steelworkers tugboat operators did.