On which side are the black benches?
The benches are on the right of the image.
     src        edge_attr  dst
0      0  to the right of   26
1      0  to the right of   23
2      0   to the left of   21
3      0  to the right of   25
4      0   to the left of   24
..   ...              ...  ...
132   26   to the left of   20
133   26  to the right of   18
134   26   to the left of    0
135   26   to the left of    7
136   26   to the left of   13

[137 rows x 3 columns]