| In an undirected graph, (i,j) means that node i and node j are connected with an undirected edge. | |
| The nodes are numbered from 0 to 12, and the edges are: (1,0) (2,6) (0,6) (8,11) (5,1) (4,0) (5,3) (0,3) (2,0) (8,4) (6,12) (2,3) (9,11) (4,6) (9,7) (10,4). |