Are the bears on the left side?
No, the bears are on the right of the image.
    src        edge_attr  dst
0     0   to the left of    7
1     0  to the right of    4
2     1  to the right of    9
3     1  to the right of   11
4     2  to the right of   10
5     2   to the left of    6
6     3  to the right of   17
7     4   to the left of    0
8     6  to the right of    2
9     6  to the right of    7
10    6  to the right of    8
11    7  to the right of    0
12    7   to the left of    6
13    8   to the left of   12
14    8   to the left of    6
15    9   to the left of    1
16   10   to the left of    2
17   11   to the left of    1
18   11  to the right of   14
19   11   to the left of   16
20   12  to the right of    8
21   13   to the left of   18
22   13  to the right of   19
23   14   to the left of   11
24   14   to the left of   16
25   15  to the right of   19
26   15   to the left of   18
27   16  to the right of   11
28   16  to the right of   14
29   17   to the left of    3
30   18  to the right of   15
31   18  to the right of   13
32   19   to the left of   15
33   19   to the left of   13