Yes, we've done a comparative analysis, but here's the difficulty. You get to the same exclusions by different routes. Some are silent. Some expressly say that it's not negotiable. Some collective agreements say that it's not negotiable. Also, then, you have some where they might have some negotiation, but I wouldn't call it negotiation. It's like motherhood statements, or inspirational clauses, or specific things such as how the union will get notice if there's a conduct matter, or the union will be permitted to have a representative attend. That's a difficulty in making a blanket statement.
I would say that you get to this conclusion that, yes, there are things that are not negotiated, but are they dealt with as exclusions potentially, or is it silent, is it a management prerogative, or is it specifically said in the collective agreement that they won't deal with it?