What is the color of this monitor?
The monitor is silver.
    src        edge_attr  dst
0     0  to the right of    5
1     1  to the right of    2
2     2   to the left of    1
3     4  to the right of   11
4     4  to the right of    6
5     4           behind   10
6     4  to the right of    5
7     5   to the left of    4
8     5   to the left of   10
9     5  to the right of   13
10    5   to the left of    0
11    5   to the left of    9
12    5   to the left of    7
13    6   to the left of    8
14    6   to the left of    4
15    7  to the right of    5
16    8  to the right of   11
17    8  to the right of    6
18    9  to the right of    5
19    9  to the right of   10
20   10        on top of    0
21   10  to the right of    5
22   10   to the left of    9
23   10      in front of    4
24   11  to the right of   13
25   11   to the left of    4
26   11   to the left of    8
27   13   to the left of   11
28   13   to the left of    5