Do the helmet and the knee pad have a different colors?
Yes, the helmet is yellow and the knee pad is black.
     src        edge_attr  dst
0      0   to the left of   21
1      0   to the left of   25
2      0  to the right of    9
3      0   to the left of    6
4      0  to the right of   16
..   ...              ...  ...
256   32  to the right of    5
257   32  to the right of   24
258   32  to the right of   27
259   32  to the right of   15
260   32  to the right of   17

[261 rows x 3 columns]