Is the door open or closed?
The door is closed.
    src        edge_attr  dst
0     0   to the left of    9
1     0   to the left of   10
2     3  to the right of    8
3     3  to the right of    6
4     3  to the right of    4
5     4   to the left of    3
6     5  to the right of    8
7     5  to the right of    6
8     6   to the left of    7
9     6   to the left of    3
10    6   to the left of    5
11    7  to the right of    6
12    8   to the left of    5
13    8   to the left of   10
14    8   to the left of    3
15    9  to the right of    0
16    9   to the left of   10
17   10  to the right of    0
18   10  to the right of    9
19   10  to the right of    8