What color is the bag that is to the left of the couch?
The backpack is black.
    src        edge_attr  dst
0     0   to the left of    4
1     0  to the right of    9
2     1  to the right of    8
3     1  to the right of    5
4     2   to the left of   12
5     3   to the left of    4
6     3  to the right of    9
7     4  to the right of    3
8     4  to the right of    0
9     4  to the right of   11
10    5   to the left of    1
11    5  to the right of    9
12    7   to the left of   10
13    7  to the right of    8
14    8   to the left of    7
15    8  to the right of    9
16    8   to the left of   12
17    8   to the left of   13
18    8   to the left of    1
19    9   to the left of    3
20    9   to the left of    0
21    9   to the left of   11
22    9   to the left of    8
23    9   to the left of    5
24   10  to the right of    7
25   11  to the right of    9
26   11   to the left of    4
27   12  to the right of    2
28   12  to the right of    8
29   13  to the right of    8
30   13               on   12