How large is the white boat?
The boat is small.
    src        edge_attr  dst
0     0  to the right of    1
1     1   to the left of    0
2     2               in    4
3     3  to the right of    6
4     3  to the right of    5
5     3  to the right of    7
6     5   to the left of    8
7     5   to the left of    3
8     5  to the right of    7
9     6   to the left of    3
10    6   to the left of    8
11    6  to the right of    7
12    7   to the left of    6
13    7               in    4
14    7   to the left of    5
15    7   to the left of    3
16    8  to the right of    5
17    8  to the right of    6