Groups without neighboring elements can be seen in ringed nodes Coxeter-Dynkin diagram for uniform polytopes and honeycomb are related to hole nodes around the elements, empty circles with the alternated nodes removed. So the snub cube, has symmetry [4,3] (), and the snub tetrahedron, has symmetry [4,3 ] (), and a demicube, h{4,3} = {3,3} ( or = ) has symmetry [1,4,3] = [3,3] ( or = = ).