EQ2EMu/EQ2/source/depends/boost_1_72_0/libs/graph/test/planar_input_graphs/planar_line_1_p8.dimacs

p edge 12 11
e 0 11
e 1 5
e 2 9
e 3 0
e 4 6
e 5 8
e 7 4
e 8 10
e 9 3
e 10 7
e 11 1