Does that fence look gray and dirty?
Yes, the fence is gray and dirty.
    src        edge_attr  dst
0     3  to the right of    9
1     3  to the right of    5
2     3  to the right of   13
3     3  to the right of    6
4     4               in    0
5     4  to the right of   10
6     4  to the right of    6
7     4  to the right of   13
8     4  to the right of   11
9     5      in front of    4
10    5  to the right of   11
11    5  to the right of   10
12    5  to the right of   13
13    5   to the left of    3
14    5  to the right of    9
15    5   to the left of    8
16    5  to the right of    6
17    6             near   13
18    6      in front of    9
19    6   to the left of    5
20    6   to the left of    3
21    6   to the left of    4
22    6      in front of   13
23    8  to the right of    5
24    9           behind    6
25    9   to the left of    5
26    9   to the left of    3
27   10   to the left of    4
28   10   to the left of    5
29   11   to the left of    5
30   11   to the left of    4
31   13               in    0
32   13   to the left of    4
33   13             near    6
34   13   to the left of    3
35   13   to the left of    5
36   13           behind    6