DEFINITION wf3_pc3_conf()
TYPE =
       g:G.c1:C.t1:T.t2:T.(pc3 c1 t1 t2)c2:C.(wf3 g c1 c2)u1:T.(ty3 g c1 t1 u1)u2:T.(ty3 g c1 t2 u2)(pc3 c2 t1 t2)
BODY =
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