What is the man on?
The man is on the bike.
     src        edge_attr  dst
0      1  to the right of   21
1      1   to the left of   16
2      3  to the right of   21
3      4   to the left of    9
4      4  to the right of   13
..   ...              ...  ...
132   23  to the right of   12
133   23  to the right of   20
134   23  to the right of   19
135   23  to the right of   22
136   23   to the left of   10

[137 rows x 3 columns]