What is the pattern of the shirt?
The shirt is checkered.
    src        edge_attr  dst
0     0  to the right of    5
1     0   to the left of    4
2     1   to the left of   10
3     1   to the left of    7
4     1  to the right of    3
5     1  to the right of    2
6     2  to the right of    3
7     2   to the left of    1
8     2   to the left of   10
9     3   to the left of    2
10    3   to the left of    1
11    4  to the right of    0
12    4  to the right of   15
13    4  to the right of    5
14    4               of   12
15    5   to the left of   15
16    5   to the left of    4
17    5   to the left of    0
18    5  to the right of    6
19    6   to the left of   12
20    6   to the left of    5
21    6   to the left of    8
22    6   to the left of   15
23    7  to the right of    1
24    7   to the left of   17
25    7  to the right of   10
26    7   to the left of   16
27    8  to the right of    6
28    9               of   15
29   10  to the right of    1
30   10   to the left of    7
31   10  to the right of    2
32   10   to the left of   17
33   11           behind   15
34   12  to the right of    6
35   13  to the right of   14
36   14   to the left of   13
37   15  to the right of    5
38   15   to the left of    4
39   15               on   12
40   15      in front of   11
41   15          reading    8
42   15             with   14
43   15          wearing    0
44   15          wearing   14
45   15  to the right of    6
46   16  to the right of    7
47   16  to the right of   17
48   17  to the right of    7
49   17  to the right of   10
50   17   to the left of   16