EQ2EMu/EQ2/source/depends/boost_1_72_0/libs/graph/test/planar_input_graphs/planar_K_4_e_9_p4.dimacs

p edge 13 15
e 0 12
e 0 3
e 1 0
e 1 9
e 2 7
e 2 6
e 4 3
e 5 4
e 5 6
e 8 12
e 8 9
e 10 7
e 10 12
e 11 3
e 11 9