Is the pine to the right of the signal light?
Yes, the pine is to the right of the signal light.
     src        edge_attr  dst
0      0   to the left of   16
1      0   to the left of   17
2      1  to the right of   22
3      1   to the left of   27
4      1   to the left of   15
..   ...              ...  ...
141   29   to the left of   13
142   30   to the left of   26
143   30  to the right of    6
144   30  to the right of   17
145   30   to the left of   13

[146 rows x 3 columns]