Are there any trucks?
Yes, there is a truck.
     src        edge_attr  dst
0      0  to the right of    3
1      0  to the right of    4
2      0  to the right of   14
3      0  to the right of   10
4      0  to the right of   17
..   ...              ...  ...
96    17   to the left of    9
97    17  to the right of   12
98    17   to the left of    0
99    17  to the right of    8
100   17          wearing    3

[101 rows x 3 columns]