What is in the glass?
The wine is in the glass.
    src        edge_attr  dst
0     1  to the right of    3
1     1   to the left of    6
2     2               in    6
3     2   to the left of    3
4     3   to the left of    1
5     3  to the right of    2
6     4               on    5
7     4   to the left of    6
8     5   to the left of    6
9     5               on    0
10    6  to the right of    5
11    6  to the right of    4
12    6  to the right of    7
13    6  to the right of    1
14    7               on    5
15    7   to the left of    6
16    7               on    0