Are there any cows on the road?
No, there is a bicycle on the road.
    src        edge_attr  dst
0     0  to the right of   13
1     0  to the right of   11
2     0   to the left of   10
3     0   to the left of    2
4     0  to the right of    1
..  ...              ...  ...
71   17         crossing   16
72   17  to the right of   11
73   17   to the left of   10
74   17         carrying    0
75   17  to the right of   15

[76 rows x 3 columns]