Which type of furniture is blue?
The furniture is a chair.
    src        edge_attr  dst
0     0               on    8
1     0   to the left of    2
2     1   to the left of    3
3     1   to the left of    2
4     2  to the right of    1
5     2  to the right of    0
6     2               on    8
7     2         piled on    8
8     2  to the right of    7
9     3  to the right of    1
10    4  to the right of    6
11    6             near    8
12    6   to the left of    4
13    7   to the left of    2
14    8             near    6