EQ2EMu/EQ2/source/depends/boost_1_72_0/libs/graph/test/planar_input_graphs/nonplanar_K_5_p3.dimacs

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