What kind of food is to the right of the person?
The food is a toast.
    src        edge_attr  dst
0     1  to the right of    6
1     5  to the right of   11
2     6   to the left of    1
3     6       sitting on    7
4     6   to the left of    9
5     7   to the left of   11
6     8               of    2
7     8  to the right of   11
8     8               on    5
9     9               on   10
10    9  to the right of    6
11   11          full of   12
12   11   to the left of   13
13   11   to the left of    5
14   11   to the left of    8
15   11  to the right of    7
16   13  to the right of   11