C2 x (((C2 x C2 x C2 x C2) : C3) : C2)
r0 := (1,2)(3,6)(4,5)(7,10)(8,11)(9,12);
r1 := (1,3)(4,8)(5,9)(7,11)(10,12);
r2 := (1,4)(2,5)(3,7)(6,10)(9,12);
r3 := (8,11)(9,12);
F := FreeGroup(4);
r0 := F.1;; r1 := F.2;; r2 := F.3;; r3 := F.4;;
G := F/[ r3^2, r1^2, r0^2, r2^2, (r2*r3)^2, (r0*r2)^2, (r0*r3)^2, (r0*r1*r3*r1)^2, (r1*r3)^4, (r2*r1*r3)^3, (r2*r1*r0*r1)^2*r0, ((r1*r2)^2*r1*r3)^2, (r2*r1*r2*r0*r1*r2*r1)^2 ];;
type 0: 4 elements
type 1: 24 elements
type 2: 6 elements
type 3: 4 elements