Which place is it?
It is a courtyard.
    src        edge_attr  dst
0     0   to the left of    6
1     1  to the right of    7
2     2   to the left of    3
3     3  to the right of   10
4     3  to the right of    2
5     3  to the right of    4
6     4   to the left of    3
7     6  to the right of    0
8     7  to the right of   12
9     7   to the left of    1
10    7   to the left of    9
11    9  to the right of    7
12    9  to the right of   12
13   10   to the left of    3
14   12   to the left of    7
15   12   to the left of    9
16   14               in   15