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local F, a, b, c, rels, G, H;
F := FreeGroup( "a", "b", "c" );
a := F.1; b := F.2; c := F.3;
rels := [ c^-1*a*c*a^-2, a^-1*b*a*b^-2, b^-1*c*b*c^-2 ];
G := F / rels;
H := TrivialSubgroup( G );
InteractiveTC( G, H );
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