EQ2EMu/EQ2/source/depends/boost_1_72_0/libs/graph/test/planar_input_graphs/planar_K_4_e_7_p6.dimacs

p edge 11 13
e 0 10
e 0 8
e 1 4
e 1 9
e 2 5
e 2 9
e 3 9
e 3 8
e 4 6
e 5 10
e 7 6
e 7 8
e 10 6