Do you see a closed door in this photograph?
No, there is a door but it is open.
     src        edge_attr  dst
0      0   to the left of   17
1      0   to the left of   13
2      0   to the left of   10
3      0   to the left of    2
4      0   to the left of   20
..   ...              ...  ...
113   22  to the right of   19
114   23  to the right of   19
115   24               on   23
116   24   to the left of   21
117   24  to the right of   19

[118 rows x 3 columns]