Are the letters green or white?
The letters are white.
     src        edge_attr  dst
0      0        on top of   18
1      0   to the left of   30
2      0  to the right of   12
3      0  to the right of   11
4      0   to the left of   29
..   ...              ...  ...
137   37   to the left of   30
138   37   to the left of   16
139   37        on top of   18
140   37       sitting on   18
141   37  to the right of   15

[142 rows x 3 columns]