What is in the glass?
The liquid is in the glass.
    src        edge_attr  dst
0     0               in    5
1     0      in front of    4
2     1          full of    4
3     1  to the right of    8
4     1   to the left of    6
5     4               in    1
6     4           behind    0
7     4  to the right of    8
8     6   to the left of   10
9     6  to the right of    1
10    8   to the left of    4
11    8   to the left of    1
12    9   to the left of   10
13   10  to the right of    6
14   10  to the right of    9