TII subcells for the Spin(7,6) x PSp(6) block of Spin13
#
cell#0 , |C| = 1
special orbit = [13]
special rep = [[6], []] , dim = 1
cell rep = phi[[6],[]]
TII depth = 1
TII multiplicity polynomial = X
TII subcells:
  tii[26,1] := {0}