EQ2EMu/EQ2/source/depends/boost_1_72_0/libs/graph/test/planar_input_graphs/planar_K_4_e_5.dimacs

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