*Vertices 9
 1 "v1"     0.7449    0.0555    0.5000
 2 "v2"     0.2040    0.0605    0.5000
 3 "v3"     0.2460    0.3088    0.5000
 4 "v4"     0.7573    0.3427    0.5000
 5 "v5"     0.5900    0.5131    0.5000
 6 "v6"     0.1020    0.6445    0.5000
 7 "v7"     0.9740    0.6503    0.5000
 8 "v8"     0.5440    0.8203    0.5000
 9 "v9"     0.5651    0.9467    0.5000
*Edges
 2  3 1 
 3  5 1 a1 25 k1 2 a2 -25 k2 2.5
 1  2 1 
 1  4 1 
 2  4 1 
 4  5 1 
 5  7 1 
 5  6 1 
 5  8 1 
 7  8 1 
 7  9 1 
 6  8 1 
 6  9 1 
 2  6 1 
 4  7 1