EQ2EMu/EQ2/source/depends/boost_1_72_0/libs/graph/test/planar_input_graphs/planar_K_4_e_5_p5.dimacs

p edge 9 11
e 0 5
e 1 0
e 2 7
e 2 0
e 3 7
e 3 5
e 4 7
e 4 5
e 6 8
e 6 1
e 8 4