Is this a green table?
Yes, this is a green table.
     src        edge_attr  dst
0      0  to the right of    1
1      0   to the left of    3
2      0  to the right of   25
3      0   to the left of   18
4      1   to the left of    0
..   ...              ...  ...
135   27   to the left of   19
136   27   to the left of   15
137   27   to the left of   21
138   27   to the left of   20
139   27   to the left of   23

[140 rows x 3 columns]