Are there both skis and helmets in this picture?
No, there are skis but no helmets.
     src       edge_attr  dst
0      0  to the left of   31
1      0  to the left of   27
2      0  to the left of   28
3      1  to the left of   11
4      1  to the left of   48
..   ...             ...  ...
286   52  to the left of   24
287   52  to the left of   51
288   52  to the left of   12
289   52  to the left of   20
290   52  to the left of   49

[291 rows x 3 columns]