What is in front of the large appliance?
The shelf is in front of the oven.
     src        edge_attr  dst
0      0               on    4
1      1      in front of    4
2      1  to the right of   11
3      1  to the right of   10
4      2               in    4
..   ...              ...  ...
98    22   to the left of    6
99    22   to the left of    7
100   22  to the right of    9
101   22   to the left of   21
102   22   to the left of   18

[103 rows x 3 columns]