What is used to make that head board, wood or metal?
The head board is made of wood.
    src        edge_attr  dst
0     0   to the left of    4
1     0             near    2
2     0          next to    2
3     2             near    0
4     3               on   10
5     4  to the right of    0
6     4  to the right of    6
7     5               on    4
8     6       hanging on    0
9     6   to the left of    7
10    6     hanging from    0
11    6   to the left of    9
12    6   to the left of    4
13    7  to the right of    6
14    9  to the right of    6