Is there a boat on the dock?
No, there is a bottle on the dock.
    src        edge_attr  dst
0     0               of    1
1     1  to the right of    7
2     5               on    2
3     5               on    6
4     5   to the left of    7
5     7   to the left of    8
6     7   to the left of    1
7     7  to the right of    5
8     8               of    1
9     8  to the right of    7
10    9               of    1
11   10        on top of   11