What is the label on?
The label is on the desk.
    src        edge_attr  dst
0     0  to the right of    9
1     1  to the right of    9
2     2  to the right of    9
3     3               on    9
4     8        on top of    6
5     8               on    6
6     8  to the right of    9
7     9   to the left of    1
8     9   to the left of    0
9     9   to the left of    8
10    9   to the left of    2
11   10               on    6