What is the color of the door?
The door is green.
     src        edge_attr  dst
0      0   to the left of    5
1      0   to the left of    3
2      0  to the right of   18
3      0   to the left of   10
4      0  to the right of   17
..   ...              ...  ...
100   18   to the left of    8
101   18   to the left of   17
102   18   to the left of    9
103   18   to the left of   10
104   18   to the left of    7

[105 rows x 3 columns]