On which side is the fence?
The fence is on the right of the image.
     src        edge_attr  dst
0      0  to the right of   13
1      0   to the left of    5
2      0  to the right of   17
3      0  to the right of   25
4      1   to the left of    2
..   ...              ...  ...
139   30  to the right of   16
140   30  to the right of   18
141   30   to the left of   29
142   33  to the right of   16
143   33  to the right of   18

[144 rows x 3 columns]