Shapley Value Calculation

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I have a problem using Shapley value. I have a 3-person game. Related to the Shapley value definition, all coalitions are possible (2^3 = 8 coalitions). But my game is in the real world and 2 of my players cannot cooperate and make a coalition. For example let N={A,B,C} My feasible coalitions (except null) are: {A},{B},{C},{AB,C},{A,BC} and {ABC}. I'm wondering if someone could help me how should I calculate the Shapley value for above set of coalitions. Regards