What color is the hydrant on the sidewalk?
The fire hydrant is red.
    src        edge_attr  dst
0     2  to the right of    5
1     3  to the right of    6
2     3  to the right of   12
3     4   to the left of   11
4     5   to the left of   10
5     5   to the left of    2
6     6   to the left of    3
7     7               on    9
8     7  to the right of   12
9     8   to the left of   10
10    8   to the left of   11
11    9               on   13
12   10  to the right of    5
13   10  to the right of    8
14   11  to the right of    4
15   11  to the right of    8
16   12   to the left of    7
17   12   to the left of    3