EQ2EMu/EQ2/source/depends/boost_1_72_0/libs/graph/test/planar_input_graphs/planar_line_1_p1.dimacs

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