Are the lamp and the castle the same color?
No, the lamp is black and the castle is white.
    src        edge_attr  dst
0     1               of    2
1     1  to the right of    2
2     2   to the left of   11
3     2   to the left of   10
4     2   to the left of    1
5     2   to the left of    9
6     2   to the left of    3
7     3  to the right of   10
8     3  to the right of    4
9     3  to the right of    2
10    3  to the right of    5
11    4   to the left of    3
12    4  to the right of    8
13    5               on    4
14    5   to the left of    3
15    5               on    2
16    6               on    3
17    8   to the left of    4
18    9   to the left of   11
19    9  to the right of    2
20   10   to the left of    3
21   10  to the right of    2
22   11  to the right of    2
23   11  to the right of    9