Is the lamp black or white?
The lamp is black.
    src        edge_attr  dst
0     0  to the right of    2
1     0   to the left of   12
2     0   to the left of    4
3     0   to the left of   16
4     0   to the left of   15
..  ...              ...  ...
74   16  to the right of    7
75   17   to the left of   12
76   17   to the left of    4
77   17  to the right of    2
78   17   to the left of   13

[79 rows x 3 columns]