On which side is the dispenser?
The dispenser is on the right of the image.
     src        edge_attr  dst
0      0   to the left of    2
1      0  to the right of    1
2      0   to the left of    4
3      0   to the left of    3
4      0   to the left of   10
..   ...              ...  ...
114   23  to the right of   10
115   24   to the left of   11
116   24   to the left of   14
117   24   to the left of   10
118   25   to the left of   10

[119 rows x 3 columns]