Does the boat to the right of the other boat look black?
Yes, the boat is black.
    src        edge_attr  dst
0     0   to the left of    6
1     1  to the right of    9
2     1  to the right of    3
3     1  to the right of    6
4     1  to the right of    4
5     2  to the right of    6
6     3  to the right of    6
7     3   to the left of    1
8     4   to the left of    1
9     5   to the left of    9
10    6   to the left of    1
11    6  to the right of    0
12    6   to the left of    3
13    6   to the left of    2
14    7               in   12
15    8               in   11
16    9   to the left of    1
17    9  to the right of    5
18   10               in   11
19   12               in   11
20   12               on   11