Which color does the drink on the right side have?
The coffee has black color.
    src        edge_attr  dst
0     0               on    6
1     0  to the right of    7
2     0  to the right of    8
3     0  to the right of    5
4     0  to the right of   13
5     1   to the left of   12
6     1   to the left of    2
7     2  to the right of    1
8     2   to the left of   16
9     2  to the right of   15
10    2   to the left of    3
11    3  to the right of    2
12    3  to the right of    5
13    3  to the right of   10
14    4   to the left of    8
15    5   to the left of    0
16    5   to the left of    3
17    5   to the left of   16
18    7  to the right of   11
19    7   to the left of    0
20    7  to the right of    9
21    8  to the right of    4
22    8   to the left of    0
23    9   to the left of    7
24    9               of   11
25   10   to the left of   14
26   10   to the left of   17
27   10  to the right of   12
28   10   to the left of    3
29   11   to the left of    7
30   12  to the right of   15
31   12   to the left of   10
32   12  to the right of    1
33   13               on    5
34   13   to the left of   16
35   13   to the left of    0
36   13  to the right of   15
37   14  to the right of   10
38   15   to the left of   13
39   15   to the left of    2
40   15   to the left of   12
41   16  to the right of    2
42   16  to the right of    5
43   16  to the right of   13
44   17  to the right of   10