  As a sequel to our recent work on Casselman--Shahidi's holomorphicity
conjecture on half-normalized intertwining operators for groups of classical
type, we apply our method to prove certain cases of the conjecture for groups
of exceptional type. One main ingredient, established here, is to find an
algorithm to produce reduced decompositions of co-rank one relative longest
Weyl elements, in terms of certain "small" counterparts.
