Where is the black dog standing on?
The dog is standing on the road.
     src        edge_attr  dst
0      0   to the left of   14
1      0   to the left of   12
2      1   to the left of   13
3      1  to the right of    6
4      1   to the left of    9
..   ...              ...  ...
100   18  to the right of   16
101   18   to the left of   13
102   18  to the right of    7
103   18  to the right of   15
104   19   to the left of    3

[105 rows x 3 columns]