What's on the street?
The motorbike is on the street.
    src        edge_attr  dst
0     0          wearing    2
1     1               on    0
2     1  to the right of    4
3     3           riding    1
4     3  to the right of    5
5     3  to the right of    7
6     3  to the right of    6
7     4   to the left of    1
8     5   to the left of    3
9     6   to the left of    3
10    7   to the left of    3