What's the boat made of?
The boat is made of wood.
    src        edge_attr  dst
0     0      in front of    8
1     0             near    8
2     0   to the left of   10
3     0  to the right of    9
4     0   to the left of   16
5     0   to the left of   12
6     1          holding    4
7     1            below   14
8     3  to the right of   10
9     4               in    1
10    4   to the left of   10
11    4   to the left of   16
12    4   to the left of    9
13    7  to the right of   15
14    8             near    0
15    8   to the left of   12
16    8           behind    0
17    9   to the left of   12
18    9   to the left of   10
19    9   to the left of    0
20    9   to the left of   16
21    9  to the right of    4
22   10               on    5
23   10  to the right of    9
24   10   to the left of    3
25   10  to the right of   16
26   10  to the right of    4
27   10  to the right of    0
28   11     hanging from   14
29   11  to the right of   12
30   12  to the right of    9
31   12  to the right of    8
32   12  to the right of    0
33   12   to the left of   11
34   12  to the right of   16
35   14            above    1
36   15   to the left of    7
37   16  to the right of    4
38   16  to the right of    0
39   16  to the right of    9
40   16   to the left of   10
41   16   to the left of   12