Are there any dispensers beside the trash can?
Yes, there is a dispenser beside the trash can.
    src        edge_attr  dst
0     0   to the left of   13
1     0  to the right of   11
2     1   to the left of   17
3     2  to the right of    6
4     2  to the right of   12
..  ...              ...  ...
63   17  to the right of   11
64   17  to the right of    1
65   17   to the left of   10
66   18   to the left of   13
67   18   to the left of   15

[68 rows x 3 columns]