What is the color of the glass?
The glass is yellow.
    src        edge_attr  dst
0     3  to the right of    5
1     3  to the right of   10
2     3  to the right of   11
3     3  to the right of    9
4     3  to the right of    6
5     3  to the right of    4
6     4   to the left of    3
7     4   to the left of    9
8     5   to the left of    9
9     5   to the left of    3
10    5       painted on    4
11    6   to the left of    9
12    6  to the right of   11
13    6   to the left of    3
14    6  to the right of    7
15    6       painted on    4
16    7       painted on    4
17    7   to the left of    6
18    7   to the left of   11
19    7   to the left of    9
20    9  to the right of   11
21    9  to the right of    5
22    9  to the right of    7
23    9  to the right of    6
24    9   to the left of    3
25    9  to the right of    4
26   10   to the left of    3
27   11  to the right of    7
28   11   to the left of    6
29   11   to the left of    9
30   11       painted on    4
31   11   to the left of    3