Is the lamp on the left side?
Yes, the lamp is on the left of the image.
    src        edge_attr  dst
0     1  to the right of    7
1     1  to the right of    8
2     2  to the right of    7
3     4  to the right of    9
4     6  to the right of    8
5     7   to the left of    2
6     7   to the left of    1
7     8   to the left of   10
8     8   to the left of    6
9     8   to the left of    1
10    9   to the left of    4
11    9   to the left of   10
12    9               on    8
13   10  to the right of    8
14   10  to the right of    9