Is the metal fence on the left side of the photo?
Yes, the fence is on the left of the image.
    src        edge_attr  dst
0     0   to the left of    7
1     0   to the left of    5
2     0   to the left of    9
3     1   to the left of    3
4     2   to the left of    3
5     3  to the right of    1
6     3  to the right of    2
7     5  to the right of    0
8     5   to the left of    9
9     5  to the right of    7
10    7  to the right of    0
11    7   to the left of    9
12    7   to the left of    5
13    9  to the right of    0
14    9  to the right of    7
15    9  to the right of    5
16   10               on   11