Which place is it?
It is a pen.
    src        edge_attr  dst
0     0  to the right of   17
1     0  to the right of    9
2     0   to the left of   18
3     0  to the right of   11
4     2             near   19
5     2   to the left of    9
6     4  to the right of    8
7     4  to the right of   14
8     4  to the right of    5
9     5               of   14
10    5   to the left of    4
11    7   to the left of   13
12    8               of   14
13    8   to the left of    4
14    9            below   19
15    9  to the right of    2
16    9   to the left of    0
17    9          next to   10
18    9             near   10
19   10             near    9
20   11               of   14
21   11  to the right of   17
22   11   to the left of   18
23   11   to the left of    0
24   13  to the right of    7
25   13           behind   14
26   14               in   10
27   14             near   19
28   14           behind   19
29   14      in front of   13
30   14   to the left of    4
31   14   to the left of   15
32   15  to the right of   18
33   15  to the right of   14
34   16               on   12
35   17   to the left of    0
36   17           behind   14
37   17   to the left of   18
38   17   to the left of   11
39   18   to the left of   15
40   18  to the right of   17
41   18  to the right of    0
42   18  to the right of   11
43   19      in front of   14
44   19             near   14
45   19             near    2
46   19               of   10