Blue, {7/2} and green {7/3} star heptagons inside a red heptagon. For example, 7.7.7 represents the heptagonal tiling which has 3 heptagons around each vertex. Within the tessellation by (2,3,7) triangles is a tessellation by 24 regular heptagons. From the collars hang heptagons, the seven sides representing the union of seven councils. There are two triangles and two heptagons alternating on each vertex.