Do the dispenser and the backpack have a different colors?
Yes, the dispenser is black and the backpack is white.
     src        edge_attr  dst
0      0   to the left of   23
1      0   to the left of   19
2      0   to the left of   28
3      0   to the left of   24
4      0   to the left of   12
..   ...              ...  ...
310   31  to the right of   20
311   31  to the right of    4
312   31   to the left of    3
313   31               on    5
314   32   to the left of    3

[315 rows x 3 columns]