Are there either any knee pads or fences?
No, there are no knee pads or fences.
    src        edge_attr  dst
0     0   to the left of    7
1     0      in front of    1
2     0   to the left of   16
3     1           behind    0
4     1   to the left of    8
..  ...              ...  ...
79   21   to the left of   22
80   22   to the left of    1
81   22   to the left of   16
82   22   to the left of   18
83   22  to the right of   21

[84 rows x 3 columns]