Which kind of vegetable is the cat holding?
The cat is holding the carrot.
    src        edge_attr  dst
0     0   to the left of   14
1     1   to the left of    5
2     2   to the left of    4
3     3  to the right of   11
4     3  to the right of    5
5     4  to the right of    2
6     5   to the left of   10
7     5   to the left of    3
8     5  to the right of    1
9     6           eating    0
10    6          holding    0
11    6      in front of   13
12    7               on    6
13    8   to the left of   12
14   10  to the right of    5
15   10  to the right of   11
16   11   to the left of    3
17   11   to the left of   10
18   12  to the right of    8
19   13           behind    6
20   14  to the right of    0