Do you see a pot there that is not silver?
Yes, there is a black pot.
    src        edge_attr  dst
0     0   to the left of   15
1     0   to the left of   14
2     0   to the left of   19
3     0   to the left of   17
4     0   to the left of    6
..  ...              ...  ...
66   19  to the right of    0
67   19   to the left of    2
68   21   to the left of    6
69   21  to the right of   10
70   21   to the left of   17

[71 rows x 3 columns]