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