On which side of the photo is the towel?
The towel is on the left of the image.
    src        edge_attr  dst
0     1  to the right of   12
1     2  to the right of   16
2     3   to the left of    9
3     4  to the right of    7
4     4   to the left of   14
5     5   to the left of   15
6     6   to the left of   15
7     7   to the left of    4
8     7   to the left of   12
9     8   to the left of    9
10    8   to the left of   15
11    9  to the right of    3
12    9  to the right of    8
13   10               on    9
14   12               on   13
15   12   to the left of    1
16   12  to the right of    7
17   13   to the left of   17
18   14  to the right of    4
19   14               on    1
20   15  to the right of    6
21   15  to the right of    5
22   15  to the right of    8
23   16   to the left of    2
24   17  to the right of   13