What is the liquid in?
The liquid is in the cup.
    src        edge_attr  dst
0     0   to the left of   21
1     1  to the right of   16
2     2               on    3
3     2  to the right of    8
4     3  to the right of    8
5     4  to the right of    8
6     5  to the right of    8
7     5  to the right of   14
8     5               on   10
9     5  to the right of   16
10    6  to the right of    7
11    6               on    9
12    6  to the right of   17
13    6  to the right of   15
14    7   to the left of    9
15    7   to the left of   21
16    7   to the left of    6
17    7   to the left of   20
18    7   to the left of   12
19    8   to the left of    2
20    8   to the left of    3
21    8   to the left of    5
22    8   to the left of    4
23    8   to the left of   22
24    8   to the left of   14
25    8               on   10
26    9  to the right of   15
27    9  to the right of   17
28    9  to the right of    7
29   10   to the left of   21
30   10               on   13
31   11               on   10
32   12   to the left of   21
33   12  to the right of   18
34   12  to the right of    7
35   14   to the left of    5
36   14  to the right of    8
37   15   to the left of    9
38   15               in   17
39   15   to the left of    6
40   16   to the left of    5
41   16   to the left of    1
42   17   to the left of    6
43   17   to the left of    9
44   18   to the left of   20
45   18   to the left of   21
46   18   to the left of   12
47   18               in    7
48   19               on   13
49   20  to the right of    7
50   20  to the right of   18
51   20   to the left of   21
52   21  to the right of   10
53   21  to the right of    0
54   21  to the right of   12
55   21  to the right of   18
56   21  to the right of    7
57   21  to the right of   20
58   22               on   10
59   22  to the right of    8