Is there a bird or an elephant?
No, there are no elephants or birds.
    src        edge_attr  dst
0     1   to the left of    5
1     1   to the left of    3
2     1  to the right of   10
3     1   to the left of    7
4     3  to the right of    5
5     3  to the right of    1
6     3               of    7
7     3   to the left of    6
8     5  to the right of   10
9     5  to the right of    8
10    5  to the right of    1
11    5   to the left of    6
12    5   to the left of    3
13    6  to the right of    5
14    6  to the right of    3
15    6  to the right of    7
16    7               on    9
17    7  to the right of    1
18    7   to the left of    6
19    8               by    7
20    8   to the left of    5
21   10   to the left of    5
22   10   to the left of    1
23   10               by    2