Do the lamp and the canopy have a different colors?
Yes, the lamp is black and the canopy is white.
     src        edge_attr  dst
0      0   to the left of   10
1      0   to the left of    7
2      0   to the left of   28
3      0   to the left of   26
4      0   to the left of   19
..   ...              ...  ...
247   36   to the left of   10
248   36  to the right of   15
249   36  to the right of   16
250   36  to the right of    6
251   36  to the right of    3

[252 rows x 3 columns]