Are there any bicycles?
Yes, there is a bicycle.
    src        edge_attr  dst
0     1  to the right of   14
1     1  to the right of   11
2     1  to the right of   18
3     2  to the right of    4
4     2  to the right of   21
..  ...              ...  ...
90   22   to the left of   10
91   22  to the right of    6
92   22  to the right of   20
93   22  to the right of   12
94   22   to the left of    8

[95 rows x 3 columns]