EQ2EMu/EQ2/source/depends/boost_1_72_0/libs/graph/test/planar_input_graphs/planar_K_4_e_9_p9.dimacs

p edge 13 15
e 1 7
e 1 3
e 2 11
e 2 3
e 4 12
e 4 5
e 6 7
e 8 5
e 8 3
e 9 12
e 9 0
e 10 6
e 10 0
e 11 5
e 11 7