What is attached to the boat?
The flag is attached to the boat.
     src        edge_attr  dst
0      0  to the right of    3
1      0  to the right of    7
2      0  to the right of    4
3      0  to the right of    5
4      0  to the right of   15
..   ...              ...  ...
140   28  to the right of   22
141   28  to the right of   20
142   28  to the right of   26
143   28  to the right of   25
144   28   to the left of   23

[145 rows x 3 columns]