Is the shore full or empty?
The shore is empty.
     src        edge_attr  dst
0      0               of   41
1      1  to the right of   21
2      1               of   44
3      1  to the right of    8
4      1  to the right of    7
..   ...              ...  ...
213   48   to the left of   44
214   48   to the left of   42
215   48   to the left of    3
216   48   to the left of    4
217   48  to the right of   14

[218 rows x 3 columns]