Is it indoors?
Yes, it is indoors.
    src        edge_attr  dst
0     0               on    2
1     0  to the right of   15
2     1  to the right of    8
3     1  to the right of   10
4     2  to the right of    4
5     2  to the right of   15
6     3  to the right of    9
7     3  to the right of    5
8     3  to the right of   14
9     4   to the left of    2
10    5   to the left of    9
11    5   to the left of    3
12    5   to the left of   14
13    7   to the left of    8
14    7   to the left of   10
15    8  to the right of    7
16    8   to the left of    1
17    9  to the right of    5
18    9  to the right of   14
19    9   to the left of    3
20   10  to the right of    7
21   10   to the left of    1
22   14               on   13
23   14   to the left of    9
24   14   to the left of    3
25   14  to the right of    5
26   15   to the left of    0
27   15   to the left of    2