What is the color of the metal door?
The door is silver.
    src        edge_attr  dst
0     0  to the right of   10
1     0  to the right of    9
2     0  to the right of    3
3     0   to the left of    4
4     1   to the left of    6
..  ...              ...  ...
59   10  to the right of    8
60   10   to the left of    0
61   10  to the right of    7
62   11  to the right of    1
63   11  to the right of    2

[64 rows x 3 columns]