EQ2EMu/EQ2/source/depends/boost_1_72_0/libs/graph/test/planar_input_graphs/planar_K_4_e_6_p2.dimacs

p edge 10 12
e 1 3
e 1 9
e 2 9
e 3 0
e 4 3
e 4 8
e 5 2
e 6 0
e 6 8
e 7 5
e 7 0
e 9 8