What is the elephant standing on?
The elephant is standing on the tiles.
    src        edge_attr  dst
0     0               of   12
1     1  to the right of    2
2     1  to the right of   14
3     1  to the right of    4
4     1  to the right of    5
5     1  to the right of    6
6     1  to the right of   11
7     1  to the right of   10
8     1  to the right of    9
9     1  to the right of   13
10    1   to the left of   15
11    2   to the left of    1
12    2  to the right of    4
13    3               of   12
14    4               of    5
15    4   to the left of    1
16    4   to the left of    2
17    5     covered with   11
18    5     covered with   14
19    5     covered with    9
20    5     covered with   10
21    5     covered with   13
22    5   to the left of    1
23    6   to the left of   11
24    6   to the left of    1
25    6   to the left of   13
26    9   to the left of    1
27   10   to the left of    1
28   11   to the left of    1
29   11  to the right of    6
30   12     walking down    8
31   12      standing on   14
32   12      standing on    9
33   12      standing on   13
34   12      standing on   11
35   12      standing on   10
36   13  to the right of    6
37   13   to the left of    1
38   14   to the left of    1
39   15               of   12
40   15  to the right of    1