TII subcells for the PSp(4,R) x Spin(4,1) block of PSp4
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cell#0 , |C| = 1
special orbit = [4]
special rep = [[2], []] , dim = 1
cell rep = phi[[2],[]]
TII depth = 1
TII multiplicity polynomial = X
TII subcells:
  tii[3,1] := {0}

cell#1 , |C| = 3
special orbit = [2, 2]
special rep = [[1], [1]] , dim = 2
cell rep = phi[[1],[1]]+phi[[],[2]]
TII depth = 1
TII multiplicity polynomial = X+X^2
TII subcells:
  tii[2,1] := {0}
  tii[2,2] := {1, 2}