Are there letters or bicycles in the picture?
Yes, there are letters.
    src        edge_attr  dst
0     0          wearing   21
1     0          wearing   22
2     0          wearing   16
3     0          wearing    9
4     0   to the left of   13
..  ...              ...  ...
65   19   to the left of   10
66   20  to the right of    0
67   21   to the left of   22
68   22  to the right of   21
69   22   to the left of   13

[70 rows x 3 columns]