Is it an indoors scene?
Yes, it is indoors.
    src        edge_attr  dst
0     1               of   11
1     2               of    0
2     4  to the right of   11
3     4  to the right of   10
4     4  to the right of    9
5     5   to the left of    9
6     7   to the left of   10
7     7   to the left of    9
8     8   to the left of    9
9     9  to the right of    5
10    9  to the right of    7
11    9   to the left of    4
12    9  to the right of    8
13    9  to the right of   11
14    9             with   10
15   10   to the left of    4
16   10  to the right of    7
17   10  to the right of   11
18   11   to the left of    9
19   11   to the left of    4
20   11   to the left of   10