Are there both cows and fences in this photograph?
No, there is a cow but no fences.
     src        edge_attr  dst
0      0  to the right of   16
1      0  to the right of   27
2      0   to the left of    1
3      0   to the left of   28
4      0   to the left of   26
..   ...              ...  ...
102   31   to the left of   13
103   31  to the right of   18
104   31   to the left of   21
105   31  to the right of   24
106   32   to the left of   30

[107 rows x 3 columns]