Are there fire hydrants on the sidewalk?
Yes, there is a fire hydrant on the sidewalk.
    src        edge_attr  dst
0     0   to the left of    3
1     2               on   16
2     3  to the right of    0
3     4             near   18
4     5               by   18
5     5  to the right of    9
6     6               in    7
7     9               on    8
8     9   to the left of    5
9    11   to the left of   16
10   12   to the left of   16
11   12           behind   16
12   13      in front of   16
13   16           behind   18
14   16           behind   13
15   16  to the right of   12
16   16  to the right of   11
17   16      in front of   12
18   17               on   18
19   18          next to    4