Is the elephant eating?
Yes, the elephant is eating.
    src        edge_attr  dst
0     0  to the right of    3
1     0  to the right of   15
2     0           behind   13
3     0  to the right of   10
4     0  to the right of    1
5     0  to the right of   12
6     1   to the left of    0
7     2               on    9
8     3               on    9
9     3   to the left of   13
10    3   to the left of    0
11    6   to the left of   11
12    6  to the right of   10
13    6  to the right of    8
14    6   to the left of    7
15    7  to the right of    6
16    8   to the left of    6
17   10   to the left of    0
18   10   to the left of    6
19   11  to the right of    6
20   12  to the right of   16
21   12   to the left of    0
22   13      in front of    0
23   13  to the right of   16
24   13  to the right of    3
25   15               on    4
26   15  to the right of   16
27   15   to the left of    0
28   16   to the left of   12
29   16   to the left of   13
30   16   to the left of   15