EQ2EMu/EQ2/source/depends/boost_1_72_0/libs/graph/test/planar_input_graphs/planar_K_4_e_6_p6.dimacs

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