Is the man to the right of a fence?
No, the man is to the right of an umbrella.
     src        edge_attr  dst
0      0   to the left of   21
1      0   to the left of    1
2      1   to the left of   21
3      1   to the left of    3
4      1  to the right of    0
..   ...              ...  ...
138   33   to the left of   19
139   34  to the right of   32
140   34   to the left of   31
141   34  to the right of   22
142   34   to the left of   11

[143 rows x 3 columns]