EQ2EMu/EQ2/source/depends/boost_1_72_0/libs/graph/test/planar_input_graphs/planar_K_4_e_5_p3.dimacs

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