Is there either a fence or a lamp in the picture?
Yes, there is a fence.
    src        edge_attr  dst
0     0  to the right of    5
1     2            below    1
2     3   to the left of   13
3     4               on   13
4     4  to the right of   13
5     5   to the left of    0
6     5  to the right of    7
7     7   to the left of    5
8     7   to the left of    9
9     7   to the left of   12
10    9  to the right of    7
11   10   to the left of   13
12   11               of   10
13   11   to the left of   13
14   12  to the right of    7
15   13  to the right of   10
16   13  to the right of    3
17   13   to the left of    4
18   13  to the right of   11