EQ2EMu/EQ2/source/depends/boost_1_72_0/libs/graph/test/planar_input_graphs/planar_K_4_e_6.dimacs

p edge 10 12
e 0 2
e 1 3
e 4 1
e 5 4
e 6 0
e 6 1
e 7 0
e 7 3
e 8 5
e 8 2
e 9 2
e 9 3