TII subcells for the Sp(8,R) x SO(9) block of Sp8
#
cell#0 , |C| = 1
special orbit = [8]
special rep = [[4], []] , dim = 1
cell rep = phi[[4],[]]
TII depth = 1
TII multiplicity polynomial = X
TII subcells:
  tii[10,1] := {0}