On which side of the photo is the metal ladder?
The ladder is on the left of the image.
    src        edge_attr  dst
0     0  to the right of    6
1     0  to the right of    7
2     0   to the left of   13
3     0  to the right of    2
4     1   to the left of   12
5     2   to the left of    0
6     3  to the right of    8
7     5   to the left of   12
8     5   to the left of    9
9     6   to the left of   14
10    6   to the left of    0
11    6  to the right of    8
12    7   to the left of    0
13    8   to the left of    6
14    8   to the left of    3
15    9  to the right of    5
16   12  to the right of    5
17   12  to the right of    1
18   13  to the right of    0
19   14  to the right of    6