What's on the sidewalk?
The hydrant is on the side walk.
    src        edge_attr  dst
0     0   to the left of    1
1     1  to the right of    0
2     1  to the right of    3
3     2               on    7
4     2  to the right of    9
5     3          wearing   11
6     3          wearing    8
7     3  to the right of   14
8     3   to the left of   10
9     3          wearing    0
10    3   to the left of    1
11    4               on    7
12    4  to the right of    9
13    5               on   12
14    7  to the right of    9
15    8   to the left of   10
16    9   to the left of    4
17    9   to the left of    2
18    9   to the left of    7
19   10  to the right of    3
20   10  to the right of    8
21   14   to the left of    3