Are there any trains to the right of the house on the left side?
Yes, there is a train to the right of the house.
    src        edge_attr  dst
0     0      in front of   10
1     0             near   14
2     0  to the right of    7
3     0  to the right of   19
4     0   to the left of    8
..  ...              ...  ...
72   19   to the left of   20
73   20  to the right of    1
74   20   to the left of   14
75   20  to the right of    2
76   20  to the right of   19

[77 rows x 3 columns]