What drink is lying on the cart?
The drink is beer.
    src        edge_attr  dst
0     1             near   11
1     1   to the left of   15
2     4   to the left of   12
3     4   to the left of   16
4     4  to the right of    7
5     5  to the right of    9
6     6   to the left of   12
7     6   to the left of   16
8     6  to the right of    7
9     7   to the left of   16
10    7   to the left of   12
11    7         lying on   10
12    7   to the left of    4
13    7   to the left of    6
14    8   to the left of   15
15    8  to the right of   13
16    9   to the left of    5
17   11             near    1
18   12  to the right of    6
19   12  to the right of    4
20   12  to the right of   16
21   12  to the right of    7
22   13   to the left of    8
23   13   to the left of   15
24   14   to the left of   15
25   15  to the right of   14
26   15  to the right of   13
27   15  to the right of    1
28   15  to the right of    8
29   16  to the right of    7
30   16   to the left of   12
31   16  to the right of    6
32   16  to the right of    4