[Zope] Acqusition

Hi, Say I've got two objects: class MyFolder(OFS.Folder.Folder,ExtensionClass.Base): def __init__(self,language): self.id = language self.language = language and below that one in the zope hierachy, a: class MyText(Acquisition.Implicit, OFS.SimpleItem.Item, Persistent, AccessControl.Role.RoleManager): def foo(self): return self.language howcome foo() fails to return the language-value? If I use the property sheet in zope to add a "language" property, it works fine. best regards, Jacob