Is it an outdoors or indoors scene?
It is indoors.
   src         edge_attr  dst
0    2    to the left of   13
1    4   to the right of    7
2    7    to the left of    4
3    8         on top of   10
4    9  standing against    0
5   11    to the left of   12
6   12   to the right of   11
7   13   to the right of    2