Are there sheep that are not walking?
Yes, there is a sheep that is standing.
    src        edge_attr  dst
0     0      in front of    7
1     0   to the left of   10
2     0  to the right of    1
3     1   to the left of    0
4     1      in front of    7
5     2   to the left of    4
6     2      in front of    7
7     3  to the right of   16
8     3   to the left of   15
9     4         lying in   13
10    4  to the right of    2
11    5   to the left of   10
12    5   to the left of   12
13    5   to the left of   11
14    5           beside   10
15    6  to the right of    8
16    6      in front of    7
17    7           behind   12
18    7           behind    1
19    7           behind    6
20    7           behind    0
21    7           behind    2
22    8   to the left of    6
23    9   to the left of   16
24   10  to the right of    0
25   10   to the left of   11
26   10  to the right of    5
27   10   to the left of   12
28   11         lying in   13
29   11            below   12
30   11            under   12
31   11  to the right of    5
32   11  to the right of   10
33   12  to the right of   10
34   12  to the right of    5
35   12      in front of    7
36   12            above   11
37   14  to the right of   15
38   15  to the right of    3
39   15   to the left of   14
40   16   to the left of    3
41   16  to the right of    9