EQ2EMu/EQ2/source/depends/boost_1_72_0/libs/graph/test/planar_input_graphs/planar_K_4_e_9_p8.dimacs

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