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Buyer: I will Pay10000 if others GiveCarCheaply.
Seller: Can someone please Pay20000 so we can achieve GetLots?
Buyer: Can someone please Pay20000 and GiveCarExpensively so we can achieve CarSoldExpensively?
Seller: I will GiveCarExpensively if others Pay20000.
Seller: Can someone please Pay10000 so we can achieve GetLittle?
Buyer: I will Pay10000 if others Pay20000 and GiveCarExpensively.
Seller: I will GiveCarCheaply if others Pay10000.
Buyer: I agree to Pay10000 if others GiveCarCheaply
Seller: I agree to GiveCarCheaply if others Pay10000
Buyer has done Pay10000.
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Seller has done GiveCarCheaply.
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(State of Buyer) is: CarSoldCheaply.
(State of Seller) is: CarSoldCheaply.