"A is working on one chain but B and C are working together on another chain, so the A chain has 40% and the B/C chain has 60%." but if B and C are working tog

"A is working on one chain but B and C are working together on another chain, so the A chain has 40% and the B/C chain has 60%." but if B and C are working together, it implies there is some sort of relationship between them so they could be coordinated together(e.g. owned by same org), this not the case I am trying to use here; my case is really 3 independent miners