Of what color is the apron?
The apron is black.
    src        edge_attr  dst
0     0   to the left of   11
1     0               on    2
2     0   to the left of    7
3     0   to the left of   14
4     0   to the left of    1
5     1  to the right of    0
6     1   to the left of   11
7     1   to the left of    4
8     2   to the left of   14
9     2   to the left of   11
10    3   to the left of   14
11    3   to the left of   15
12    3   to the left of   13
13    3   to the left of   11
14    4  to the right of    7
15    4  to the right of    1
16    4  to the right of   10
17    4  to the right of   14
18    5  to the right of   10
19    5               on    8
20    5  to the right of   13
21    5  to the right of   15
22    6  to the right of   11
23    7   to the left of   14
24    7  to the right of    0
25    7   to the left of    4
26    9  to the right of   10
27    9  to the right of   13
28   10   to the left of   14
29   10   to the left of   11
30   10   to the left of    5
31   10   to the left of    4
32   10   to the left of    9
33   11  to the right of   10
34   11  to the right of   12
35   11  to the right of   15
36   11  to the right of    0
37   11  to the right of    2
38   11  to the right of    3
39   11  to the right of    1
40   11   to the left of    6
41   12   to the left of   11
42   13   to the left of    5
43   13  to the right of   15
44   13   to the left of    9
45   13  to the right of    3
46   14  to the right of    2
47   14  to the right of    0
48   14  to the right of   15
49   14  to the right of   10
50   14   to the left of    4
51   14  to the right of    3
52   14  to the right of    7
53   15  to the right of    3
54   15   to the left of    5
55   15   to the left of   11
56   15   to the left of   14
57   15   to the left of   13