On which side are the cages?
The cages are on the left of the image.
    src        edge_attr  dst
0     0          holding   10
1     0               on    2
2     0  to the right of   13
3     0  to the right of    9
4     0   to the left of   10
5     0   to the left of    8
6     0  to the right of    3
7     0  to the right of   15
8     1  to the right of    7
9     3  to the right of   17
10    3   to the left of    0
11    4   to the left of   12
12    4               on    8
13    4  to the right of   14
14    5  to the right of   13
15    5  to the right of   11
16    5   to the left of   14
17    7  to the right of    9
18    7   to the left of    1
19    8  to the right of    0
20    8  to the right of   10
21    9   to the left of    7
22    9   to the left of    0
23    9  to the right of   17
24   10  to the right of   19
25   10  to the right of   16
26   10  to the right of   13
27   10  to the right of    0
28   10   to the left of    8
29   11  to the right of   13
30   11   to the left of    5
31   12  to the right of    4
32   12  to the right of   14
33   13   to the left of   10
34   13   to the left of    5
35   13   to the left of   19
36   13   to the left of   11
37   13   to the left of    0
38   13   to the left of   16
39   14   to the left of   12
40   14  to the right of    5
41   14   to the left of    4
42   15  to the right of   17
43   15   to the left of    0
44   15   to the left of   19
45   16   to the left of   10
46   16  to the right of   13
47   17   to the left of   15
48   17   to the left of    3
49   17          wearing   18
50   17   to the left of    9
51   19  to the right of   13
52   19  to the right of   15
53   19   to the left of   10