Which side is the shelf on?
The shelf is on the left of the image.
    src        edge_attr  dst
0     0  to the right of    5
1     0   to the left of    2
2     0  to the right of   10
3     0           behind    1
4     1      in front of    0
5     2  to the right of    0
6     4   to the left of    8
7     5               on   10
8     5   to the left of    0
9     6  to the right of   10
10    7  to the right of    8
11    8   to the left of    7
12    8  to the right of    4
13   10   to the left of    6
14   10   to the left of    0