I think that you should define a separate Asset class that would have property of type multiValuedAttribute. So it would go something like.
You could always change the type so that the web service returns something friendly to the wsdl processor. So for example, based on the example you gave, you should easily be able to convert that into an array of KeyValuePair or something before returning it from the web service.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.