What animal is this, an elephant or a boar?
This is an elephant.
    src        edge_attr  dst
0     0               by    2
1     0  to the right of    2
2     0  to the right of    1
3     0  to the right of    9
4     1  to the right of    2
5     1   to the left of    0
6     1   to the left of    6
7     1  to the right of    4
8     1               by    0
9     1  to the right of    9
10    2   to the left of    6
11    2   to the left of    1
12    2   to the left of    8
13    2   to the left of    0
14    3  to the right of    5
15    4   to the left of    1
16    5   to the left of    7
17    5   to the left of    3
18    6  to the right of    2
19    6  to the right of    1
20    6  to the right of    9
21    7  to the right of    5
22    8  to the right of    2
23    9   to the left of    1
24    9   to the left of    6
25    9   to the left of    0