data/connectivity/graph_description/easy/graph140.txt

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 9, and the edges are: (9,4) (1,3) (8,1) (4,0) (4,7) (2,7) (5,7) (2,8) (6,9).