Which place is it?
It is a pen.
    src        edge_attr  dst
0     0   to the left of    1
1     0   to the left of    6
2     1             near   11
3     1               in    4
4     1  to the right of   10
5     1  to the right of    0
6     1  to the right of   13
7     1  to the right of   11
8     1   to the left of    6
9     1  to the right of    3
10    1  to the right of    2
11    2  to the right of    7
12    2   to the left of    6
13    2   to the left of    1
14    3   to the left of    1
15    5           behind   11
16    6             near   11
17    6  to the right of    0
18    6  to the right of    2
19    6  to the right of   11
20    6  to the right of   10
21    6  to the right of   13
22    6  to the right of    1
23    7   to the left of    2
24   10   to the left of    1
25   10   to the left of    6
26   11      in front of    5
27   11             near    6
28   11             near    1
29   11   to the left of    1
30   11   to the left of    6
31   11            above   12
32   12            under   11
33   13   to the left of    1
34   13   to the left of    6