Are there both a cake and a plate?
Yes, there are both a cake and a plate.
     src        edge_attr  dst
0      0   to the left of   34
1      0   to the left of   20
2      1   to the left of   49
3      1   to the left of    9
4      1   to the left of    2
..   ...              ...  ...
220   50   to the left of   33
221   51  to the right of   31
222   51  to the right of   12
223   51  to the right of   36
224   51  to the right of   35

[225 rows x 3 columns]