EQ2EMu/EQ2/source/depends/boost_1_72_0/libs/graph/test/planar_input_graphs/planar_non_bicon_1.dimacs

p edge 8 8
e 0 1
e 0 2
e 0 3
e 0 4
e 1 5
e 1 4
e 1 2
e 2 4
e 2 3
e 2 6
e 3 7
e 3 4