  Dempster's rule of combination has been the most controversial part of the
Dempster-Shafer (D-S) theory. In particular, Zadeh has reached a conjecture on
the noncombinability of evidence from a relational model of the D-S theory. In
this paper, we will describe another relational model where D-S masses are
represented as conditional granular distributions. By comparing it with Zadeh's
relational model, we will show how Zadeh's conjecture on combinability does not
affect the applicability of Dempster's rule in our model.
