TII subcells for the Spin(5,4) x PSp(3,1) block of Spin9
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cell#0 , |C| = 1
special orbit = [9]
special rep = [[4], []] , dim = 1
cell rep = phi[[4],[]]
TII depth = 1
TII multiplicity polynomial = X
TII subcells:
  tii[10,1] := {0}

cell#1 , |C| = 7
special orbit = [7, 1, 1]
special rep = [[3], [1]] , dim = 4
cell rep = phi[[3, 1],[]]+phi[[3],[1]]
TII depth = 1
TII multiplicity polynomial = X+3*X^2
TII subcells:
  tii[9,1] := {2, 6}
  tii[9,2] := {0, 5}
  tii[9,3] := {1, 4}
  tii[9,4] := {3}

cell#2 , |C| = 8
special orbit = [5, 2, 2]
special rep = [[2, 1], [1]] , dim = 8
cell rep = phi[[2, 1],[1]]
TII depth = 2
TII multiplicity polynomial = 8*X
TII subcells:
  tii[7,1] := {1}
  tii[7,2] := {7}
  tii[7,3] := {6}
  tii[7,4] := {0}
  tii[7,5] := {4}
  tii[7,6] := {2}
  tii[7,7] := {5}
  tii[7,8] := {3}