graphkit-learn/datasets/monoterpenoides/20.ct

 10 9
   -5.5580    1.4732    0.0000 C
   -4.8436    1.8857    0.0000 C
   -4.1291    1.4732    0.0000 C
   -4.8436    2.7107    0.0000 C
   -4.1291    0.6482    0.0000 C
   -4.8436    0.2357    0.0000 C
   -4.8436   -0.5893    0.0000 C
   -5.5580   -1.0018    0.0000 C
   -4.1291   -1.0018    0.0000 C
   -4.1291    3.1232    0.0000 C
   1    2    1    1
   2    3    2    2
   2    4    1    1
   3    5    1    1
   5    6    1    1
   6    7    2    2
   7    8    1    1
   7    9    1    1
   4   10    2    2