Which color is the truck that is to the right of the bed?
The truck is dark.
    src        edge_attr  dst
0     0  to the right of    3
1     0   to the left of    2
2     2           behind   10
3     2  to the right of    0
4     2  to the right of   10
5     2  to the right of    9
6     3          next to    4
7     3   to the left of    9
8     3             near    4
9     3   to the left of    0
10    3   to the left of   10
11    4            below   10
12    4       covered by   11
13    4            below    6
14    4             near    3
15    5           beside    4
16    9   to the left of    2
17    9  to the right of    3
18   10   to the left of    2
19   10  to the right of    3
20   10      in front of    2
21   10           beside    5
22   11         covering    4