Are there any doors?
No, there are no doors.
    src        edge_attr  dst
0     0   to the left of    3
1     1   to the left of   13
2     1   to the left of   14
3     2               on    6
4     3  to the right of    5
5     3  to the right of    0
6     4          next to   10
7     4             near   10
8     5           beside    6
9     5               on   10
10    5   to the left of    3
11    5   to the left of    6
12    6  to the right of    5
13   10             near   13
14   10             near    4
15   12   to the left of   14
16   12   to the left of   13
17   13          next to   10
18   13  to the right of   12
19   13  to the right of    1
20   14  to the right of   12
21   14  to the right of    1