EQ2EMu/EQ2/source/depends/boost_1_72_0/libs/graph/test/planar_input_graphs/nonplanar_K_5_p8.dimacs

p edge 5 10
e 1 2
e 1 3
e 1 4
e 1 0
e 2 3
e 2 4
e 2 0
e 3 4
e 3 0
e 4 0