Is there an easy way to make it so that:
Given 5 territories A-E, where if A is held and either B, C or D is held a bonus is received (we will say it is worth one troop for this example), but if you hold A and both B and C or B and D or any combination of the 3 territories doesn't get any extra, so that holding A and B would get you +1 and holding A and C would get you +1, But holding A and B and C would just get you +1?
Now, if that is possible it is possible to make it so that if you hold territory E then you can get +1 for each, so that A and B and C would be +2 and A plus B and C and D would be +3?