EQ2EMu/EQ2/source/depends/boost_1_72_0/libs/graph/test/planar_input_graphs/planar_K_5_sub_3_p9.dimacs

p edge 5 9
e 0 1
e 0 2
e 0 4
e 1 2
e 1 3
e 1 4
e 2 3
e 2 4
e 3 4