Is the fence made of the same material as the pipe?
No, the fence is made of wood and the pipe is made of metal.
    src        edge_attr  dst
0     1   to the left of   22
1     2   to the left of    5
2     2   to the left of   22
3     3           behind   18
4     5      standing on    4
..  ...              ...  ...
83   24  to the right of    5
84   24  to the right of   18
85   24   to the left of   17
86   24  to the right of   19
87   24  to the right of   22

[88 rows x 3 columns]