What is the color of the speaker to the right of the bottle?
The speaker is gray.
    src        edge_attr  dst
0     2   to the left of   17
1     2               on    3
2     3  to the right of    8
3     4  to the right of    8
4     5   to the left of   16
5     6   to the left of   14
6     6   to the left of   11
7     6  to the right of   18
8     6   to the left of    9
9     6  to the right of    8
10    8   to the left of   11
11    8   to the left of    3
12    8   to the left of   18
13    8   to the left of    6
14    8   to the left of    4
15    9  to the right of   19
16    9  to the right of   11
17    9  to the right of    6
18    9  to the right of   18
19   11   to the left of    9
20   11  to the right of   18
21   11  to the right of    8
22   11  to the right of    6
23   11   to the left of   14
24   12   to the left of   15
25   14  to the right of   18
26   14  to the right of   11
27   14  to the right of    6
28   14  to the right of   19
29   15  to the right of   16
30   15  to the right of   12
31   16  to the right of    5
32   16   to the left of   15
33   17  to the right of    2
34   18  to the right of    8
35   18   to the left of    9
36   18   to the left of    6
37   18   to the left of   11
38   18   to the left of   14
39   18   to the left of   19
40   19   to the left of   14
41   19  to the right of   18
42   19   to the left of    9