Are there any safety vests or chess pieces in the picture?
No, there are no safety vests or chess pieces.
     src        edge_attr  dst
0      0  to the right of   18
1      0  to the right of    8
2      0  to the right of   15
3      0  to the right of   17
4      0  to the right of    1
..   ...              ...  ...
131   20   to the left of   19
132   20  to the right of   18
133   20   to the left of    7
134   20         drinking   17
135   20          wearing    2

[136 rows x 3 columns]