Are there either buses or mirrors?
Yes, there is a bus.
    src        edge_attr  dst
0     0             near   12
1     0   to the left of    1
2     0      in front of    2
3     0   to the left of   12
4     0  to the right of    9
..  ...              ...  ...
77   15  to the right of    9
78   15   to the left of   14
79   15   to the left of    7
80   15   to the left of    6
81   15   to the left of   10

[82 rows x 3 columns]