Which animal is this, a bear or a lion?
This is a bear.
    src        edge_attr  dst
0     0   to the left of   10
1     0   to the left of   13
2     1  to the right of   10
3     1  to the right of   12
4     1  to the right of    9
5     1  to the right of    3
6     1  to the right of   13
7     1  to the right of    6
8     1  to the right of   15
9     1  to the right of    7
10    1  to the right of    5
11    1  to the right of    4
12    1  to the right of    2
13    2   to the left of    3
14    2   to the left of    5
15    2   to the left of    1
16    3   to the left of    1
17    3  to the right of    2
18    4   to the left of    1
19    5   to the left of    1
20    5  to the right of    2
21    6   to the left of   13
22    6   to the left of    1
23    7   to the left of    1
24    7   to the left of   13
25    8   to the left of   13
26    8  to the right of   11
27    9   to the left of   15
28    9  to the right of   14
29    9   to the left of    1
30   10   to the left of    1
31   10  to the right of   14
32   10   to the left of   13
33   10  to the right of    0
34   11   to the left of    8
35   11   to the left of   13
36   12   to the left of    1
37   13  to the right of    0
38   13   to the left of    1
39   13  to the right of   14
40   13  to the right of   11
41   13  to the right of    6
42   13  to the right of   10
43   13  to the right of    7
44   13  to the right of    8
45   14   to the left of   15
46   14   to the left of   10
47   14   to the left of    9
48   14   to the left of   13
49   15  to the right of   14
50   15  to the right of    9
51   15   to the left of    1