What is the watercraft in front of the green trees called?
The watercraft is boats.
     src        edge_attr  dst
0      0   to the left of    3
1      0   to the left of   14
2      0  to the right of   11
3      0   to the left of   21
4      0   to the left of   19
..   ...              ...  ...
234   31  to the right of   17
235   31  to the right of   19
236   31  to the right of   13
237   31  to the right of   14
238   31  to the right of    3

[239 rows x 3 columns]