How large is the lamp?
The lamp is small.
    src        edge_attr  dst
0     0  to the right of   12
1     1  to the right of   12
2     2   to the left of    8
3     2   to the left of   16
4     2  to the right of    9
..  ...              ...  ...
66   17  to the right of   18
67   17   to the left of    7
68   17   to the left of    6
69   18   to the left of   17
70   18   to the left of   14

[71 rows x 3 columns]