Are there any fences or helmets that are brown?
Yes, the helmet is brown.
    src        edge_attr  dst
0     0  to the right of   11
1     0   to the left of    6
2     0   to the left of   18
3     0  to the right of   13
4     1  to the right of    8
..  ...              ...  ...
66   20   to the left of   21
67   20   to the left of    9
68   21   to the left of    9
69   21  to the right of   19
70   21  to the right of   20

[71 rows x 3 columns]