EQ2EMu/EQ2/source/depends/boost_1_72_0/libs/graph/test/planar_input_graphs/planar_line_1_p0.dimacs

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