What color is the boat made of wood, brown or white?
The boat is brown.
    src        edge_attr  dst
0     0   to the left of    4
1     0               in    2
2     0      in front of    4
3     3  to the right of    6
4     3               on    5
5     3  to the right of    5
6     4  to the right of    7
7     4  to the right of    0
8     4           behind    0
9     5   to the left of    3
10    5  to the right of    6
11    6   to the left of    5
12    6   to the left of    3
13    6               on    0
14    6   to the left of    7
15    7  to the right of    6
16    7               on    0
17    7   to the left of    4