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