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