The door behind the tree is what color?
The door is blue.
    src        edge_attr  dst
0     0             near   21
1     0             near    6
2     0  to the right of   17
3     0   to the left of   15
4     0  to the right of   20
..  ...              ...  ...
68   20   to the left of    0
69   20   to the left of   16
70   21      in front of   16
71   21      in front of   15
72   21             near    0

[73 rows x 3 columns]