Is the boat tied to the long pole?
Yes, the boat is tied to the pole.
    src        edge_attr  dst
0     0               by    5
1     0   to the left of    1
2     1               on    5
3     1   to the left of    4
4     1  to the right of    0
5     2               on    5
6     2   to the left of    4
7     4  to the right of    2
8     4  to the right of    1
9     5          tied to    4
10    5               in    3
11    6               on    4
12    6               in    3