What is on the brick wall?
The bricks are on the wall.
     src        edge_attr  dst
0      0  to the right of    6
1      0  to the right of   18
2      0  to the right of   28
3      0   to the left of   29
4      0   to the left of   30
..   ...              ...  ...
141   30               on   11
142   30  to the right of   29
143   30   to the left of   10
144   30  to the right of    0
145   30  to the right of   18

[146 rows x 3 columns]