Is the lamp on the left or on the right of the picture?
The lamp is on the left of the image.
    src        edge_attr  dst
0     1   to the left of   16
1     1  to the right of    4
2     1               on    9
3     1  to the right of    6
4     3               on    2
5     4   to the left of    1
6     4               on    9
7     5               on    9
8     5  to the right of   11
9     6               on   14
10    6   to the left of    1
11    7               on    6
12    7   to the left of   10
13    8               on    9
14    8  to the right of   11
15   10               on    6
16   10  to the right of    7
17   11               on    9
18   11   to the left of    8
19   11  to the right of   17
20   11   to the left of    5
21   11  to the right of   18
22   12               on    2
23   15   to the left of   18
24   16               in   19
25   16               on    9
26   16  to the right of    1
27   17               on    9
28   17               in   19
29   17   to the left of   11
30   17   to the left of   18
31   18               in   19
32   18   to the left of   11
33   18  to the right of   15
34   18  to the right of   17