What are the lambs eating?
The lambs are eating grass.
    src        edge_attr  dst
0     2  to the right of   12
1     2   to the left of   16
2     3       grazing in   15
3     3  to the right of    6
4     3   to the left of    4
5     3   to the left of   16
6     4           behind    9
7     4  to the right of    3
8     4  to the right of   14
9     4  to the right of    5
10    4  to the right of   11
11    4  to the right of   17
12    4   to the left of   16
13    4  to the right of   12
14    5   to the left of    4
15    5  to the right of   17
16    5  to the right of   13
17    5   to the left of   16
18    6             near    9
19    6          next to    9
20    6   to the left of    3
21    6           behind    9
22    9  to the right of   13
23    9             near    6
24    9               in   15
25    9       grazing in   15
26    9           eating   10
27    9      eating from   15
28   10           inside    8
29   11               of    9
30   11   to the left of    4
31   11   to the left of   16
32   11  to the right of   12
33   12   to the left of    4
34   12               of    9
35   12   to the left of   16
36   12   to the left of   11
37   12   to the left of    2
38   13   to the left of    5
39   13   to the left of    9
40   13   to the left of   17
41   13               of    3
42   14   to the left of    4
43   14   to the left of   16
44   16  to the right of   11
45   16  to the right of   12
46   16  to the right of   17
47   16  to the right of    5
48   16  to the right of    3
49   16  to the right of   14
50   16  to the right of    4
51   16  to the right of    2
52   17   to the left of    5
53   17   to the left of   16
54   17   to the left of    4
55   17  to the right of   13
56   17               of    9