EQ2EMu/EQ2/source/depends/boost_1_72_0/libs/graph/test/planar_input_graphs/planar_K_4_e_5_p6.dimacs

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