Does the fire hydrant look gray?
Yes, the fire hydrant is gray.
    src           edge_attr  dst
0     0     to the right of    3
1     1                  on   12
2     2     to the right of    9
3     2                  in    3
4     2     to the right of    4
5     2      to the left of   11
6     2     to the right of   10
7     3      to the left of    0
8     4      to the left of    2
9     4      to the left of   11
10    4     to the right of   10
11    5                  on   15
12    7     to the right of    9
13    7     to the right of    8
14    8      to the left of    7
15    8      to the left of   13
16    8      to the left of   14
17    9      to the left of   14
18    9      to the left of   11
19    9      to the left of    7
20    9      to the left of    2
21   10      to the left of    4
22   10      to the left of    2
23   10  parked in front of    9
24   10      to the left of   11
25   11     to the right of    9
26   11     to the right of    2
27   11     to the right of   10
28   11     to the right of    4
29   13     to the right of    8
30   14     to the right of    9
31   14     to the right of    8