Which kind of clothing is gray?
The clothing is a suit.
    src        edge_attr  dst
0     0  to the right of    9
1     0  to the right of   12
2     0  to the right of    2
3     0  to the right of    6
4     0          wearing    7
5     0          wearing    4
6     0  to the right of    8
7     1          wearing    5
8     1   to the left of   12
9     2   to the left of    7
10    2   to the left of    4
11    2  to the right of   10
12    2          wearing    6
13    2   to the left of    0
14    2   to the left of   11
15    3  to the right of   10
16    4  to the right of    2
17    4  to the right of   12
18    5   to the left of   12
19    6   to the left of    0
20    6   to the left of    7
21    7  to the right of    6
22    7  to the right of   12
23    7  to the right of    2
24    8   to the left of    0
25    8   to the left of   11
26    9   to the left of   11
27    9   to the left of    0
28   10   to the left of    3
29   10   to the left of    2
30   11  to the right of    2
31   11  to the right of    9
32   11  to the right of    8
33   11               of    0
34   12   to the left of    4
35   12  to the right of    5
36   12   to the left of    0
37   12  to the right of    1
38   12   to the left of    7