Is there any bus to the right of the old man?
Yes, there is a bus to the right of the man.
     src        edge_attr  dst
0      0  to the right of   19
1      0  to the right of   18
2      0   to the left of   20
3      0   to the left of    7
4      0   to the left of    6
..   ...              ...  ...
101   24   to the left of    2
102   25   to the left of   22
103   26   to the left of    9
104   27  to the right of    3
105   27  to the right of    4

[106 rows x 3 columns]