06年的一道题 notes credit risk page198 no.40

In a total return swap, the buyer of credit risk passes on any appreciation in the value of underlying asset to the seller of risk.

答案说这个不对，应该是seller passes on .... to buyer.

但我google到Assume that bank A (the protection buyer) and bank B (the protection seller) have entered a total return swap contract. According to this contract, bank A is paying all interest payments on the reference asset, plus any capital gains (positive price changes of the asset) over the payment period to bank B. Furthermore, bank B is paying LIBOR plus a spread as well as any negative price changes of the asset.

我理解的是 if underlying asset appreciates, buyer has to pay price changes of the asset to seller.
大家怎么看？