Which shape is that mat?
The mat is round.
    src        edge_attr  dst
0     0  to the right of    2
1     0   to the left of   11
2     1   to the left of   11
3     2   to the left of   11
4     2   to the left of    0
5     2               of    5
6     3   to the left of   11
7     3  to the right of    7
8     3  to the right of   14
9     4        on top of   10
10    5           inside    4
11    5   to the left of    6
12    5   to the left of   11
13    6  to the right of    5
14    6  to the right of   11
15    7           behind   14
16    7   to the left of    3
17    7   to the left of   16
18    8   to the left of   11
19   10      in front of   13
20   11  to the right of    3
21   11  to the right of    5
22   11   to the left of    6
23   11  to the right of    8
24   11   to the left of   12
25   11   to the left of   13
26   11  to the right of    0
27   11  to the right of    2
28   11  to the right of    1
29   12  to the right of   11
30   13           behind   10
31   13  to the right of   11
32   14   to the left of    3
33   14   to the left of   16
34   16  to the right of   14
35   16  to the right of    7