Which kind of clothing is black?
The clothing is a suit.
    src        edge_attr  dst
0     0               of    1
1     0   to the left of    6
2     0   to the left of   10
3     0   to the left of    8
4     0   to the left of    5
5     2   to the left of    6
6     2   to the left of   11
7     2   to the left of    5
8     2   to the left of    8
9     3   to the left of   11
10    3   to the left of    9
11    5   to the left of   11
12    5  to the right of    2
13    5  to the right of    0
14    6  to the right of    0
15    6  to the right of    2
16    6   to the left of   11
17    8  to the right of    2
18    8   to the left of   11
19    8  to the right of    0
20    9  to the right of    3
21    9  to the right of   10
22   10  to the right of    0
23   10   to the left of    9
24   10   to the left of   11
25   11  to the right of    3
26   11  to the right of   10
27   11  to the right of    8
28   11  to the right of    6
29   11  to the right of    2
30   11  to the right of    5