TII subcells for the PU(2,2) x SL(2,H) block of PGL4
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cell#0 , |C| = 1
special orbit = [4]
special rep = [4] , dim = 1
cell rep = phi[4]
TII depth = 1
TII multiplicity polynomial = X
TII subcells:
  tii[5,1] := {0}

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