Is there a train in front of the building the vending machine is resting on?
No, there is a bus in front of the building.
    src        edge_attr  dst
0     0   to the left of    4
1     0  to the right of    5
2     0   to the left of    1
3     0   to the left of    7
4     1  to the right of   14
..  ...              ...  ...
69   14   to the left of    4
70   15               on    0
71   15  to the right of    5
72   15   to the left of    7
73   15      in front of   14

[74 rows x 3 columns]