Who is on the boat?
The people are on the boat.
    src        edge_attr  dst
0     0               in    3
1     0               on    3
2     0   to the left of    4
3     1   to the left of    5
4     1   to the left of    7
5     1   to the left of   11
6     1          wearing   10
7     4  to the right of    0
8     5               in    0
9     5  to the right of    1
10    5   to the left of    7
11    5               on    0
12    5   to the left of   11
13    7  to the right of    1
14    7  to the right of    5
15   11  to the right of    1
16   11  to the right of    5