What color is the dome?
The dome is gray.
    src        edge_attr  dst
0     2  to the right of   15
1     2  to the right of   16
2     2  to the right of    5
3     2  to the right of    4
4     2  to the right of   14
..  ...              ...  ...
62   19  to the right of   15
63   19  to the right of   14
64   19      in front of    7
65   19               on    7
66   19  to the right of    4

[67 rows x 3 columns]