Building bonus to certain factions only?

Is it possible to give building bonuses only to certain factions and not to any faction occupying the city?

For instance: there's a building called Torture Chamber that would give Law bonus to faction A, but if faction B occupies the city, they get no bonus from it. Or even, faction B would get a penalty instead of a bonus (aside from the obvious culture penalty).

Fairly simple. Do it like this and insert any faction for "carthage":

Code:

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capability
            {             
                happiness_bonus bonus 2 requires factions { carthage, }
            }

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