AMAB BUYER SELLER Start InitialOfferPending SELLER SendMessage xml-document OfferSet.xsd InitialOfferRefused BUYER SendMessage xml-document NoSelection.xsd InitialOfferAccepted BUYER SendMessage xml-document SelectOffer.xsd NoDeal BUYER SendMessage xml-document Quit.xsd InitialOfferPending SELLER SendMessage xml-document OfferSet.xsd NoDeal SELLER SendMessage xml-document Quit.xsd ImprovedOfferPending SELLER SendMessage xml-document OfferSet NegotiationOver SELLER SendMessage xml-document Quit.xsd ImprovedOfferProcessed BUYER SendMessage xml-docmuent NoSelection.xsd ImprovedOfferProcessed BUYER SendMessage xml-document SelectOffer NegotiationOver BUYER SendMessage xml-document Quit.xsd ImprovedOfferPending SELLER SendMessage xml-document OfferSet.xsd NegotiationOver SELLER SendMessage xml-document Quit.xsd DealFinalized SELLER SendMessage xml-document ConfirmOffer DealConfirmed BUYER SendMessage xml-document Accept.xsd NoDeal BUYER SendMessage xml-document Cancel.xsd DealConfirmed NoDeal