What appliance leans on the wall?
The appliance is an oven.
    src        edge_attr  dst
0     1  to the right of   11
1     1   to the left of    4
2     2   to the left of   13
3     3               on    4
4     4  to the right of    1
5     4               of    3
6     5   to the left of    9
7     8  to the right of   12
8     9  to the right of    5
9     9       leaning on    4
10   10   to the left of   13
11   11   to the left of    1
12   12   to the left of    8
13   13  to the right of   10
14   13  to the right of    2