I came across this same problem myself. First you need to retrieve the EntityContainer from the Storage Model Content (edmx:StorageModels) section of the edmx file.
I think I misunderstood your question the first time. Have you examined the edmx schema for any clues?
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.