(C3 x C3 x C3 x C3) : (C2 x C2 x C2)
r0 := (1,2)(3,6)(4,7)(5,8)(9,11)(10,12);
r1 := (2,5)(3,8)(9,12)(10,11);
r2 := (1,3)(2,6)(4,9)(7,11);
r3 := (1,4)(2,7)(3,9)(5,10)(6,11)(8,12);
F := FreeGroup(4);
r0 := F.1;; r1 := F.2;; r2 := F.3;; r3 := F.4;;
G := F/[ r1^2, r2^2, r3^2, r0^2, (r2*r0)^2, (r2*r3)^2, (r0*r3)^2, (r2*r0*r3)^2, (r2*r1)^3, (r3*r2*r1*r3*r1)^2, (r0*r2*r1*r0*r1)^2, (r3*r1)^6, r0*r3*r1*r3*r0*r2*r1*r0*r3*r1*r0*r2*r3*r1, (r3*r1*r0*r1)^2*r3*r2*r1*r0*r1*r3*r1*r0*r1*r2 ];;
type 0: 18 elements
type 1: 81 elements
type 2: 3 elements
type 3: 18 elements
Leaf [ 0, 1 ]
Leaf [ 3, 1 ]