Do you see cakes there?
Yes, there is a cake.
    src        edge_attr  dst
0     0               on    1
1     0  to the right of   14
2     0   to the left of    6
3     0   to the left of   12
4     1  to the right of   14
5     1  to the right of    5
6     2  to the right of   10
7     2   to the left of    4
8     2   to the left of    7
9     3   to the left of    4
10    3   to the left of    7
11    4  to the right of   11
12    4               of    7
13    4  to the right of    3
14    4               on   16
15    4  to the right of    2
16    5   to the left of    1
17    6               on    1
18    6  to the right of    0
19    7  to the right of    2
20    7  to the right of   11
21    7  to the right of    3
22    8  to the right of   13
23    8            under    9
24    8   to the left of   15
25    8            below    9
26    9  to the right of   13
27    9               on    8
28    9            above    8
29   10  to the right of   13
30   10   to the left of    2
31   11   to the left of    7
32   11   to the left of    4
33   11               on    2
34   12               on    1
35   12  to the right of    0
36   13   to the left of   15
37   13   to the left of    9
38   13   to the left of   10
39   13   to the left of    8
40   14   to the left of    0
41   14   to the left of    1
42   15               in    9
43   15  to the right of   13
44   15  to the right of    8