Which color is the bottle that is on the shelf?
The bottle is red.
    src        edge_attr  dst
0     1  to the right of   14
1     1  to the right of    8
2     1   to the left of   16
3     1   to the left of   15
4     2               on   13
5     3  to the right of   17
6     3  to the right of   19
7     3               in    6
8     4               on    5
9     4   to the left of   15
10    5  to the right of   18
11    5   to the left of   15
12    8   to the left of   15
13    8  to the right of   14
14    8               on    4
15    8   to the left of    1
16    8   to the left of   16
17   12  to the right of   13
18   13   to the left of   12
19   13               in    6
20   14   to the left of   16
21   14   to the left of    8
22   14   to the left of    1
23   15  to the right of    5
24   15  to the right of    1
25   15  to the right of    8
26   15  to the right of    4
27   16  to the right of    1
28   16  to the right of   14
29   16  to the right of    8
30   17               on   19
31   17   to the left of    3
32   18   to the left of    5
33   19   to the left of    3