What color is the shirt of the man?
The shirt is red.
    src        edge_attr  dst
0     2           behind   12
1     3   to the left of    4
2     4  to the right of    5
3     4   to the left of    9
4     4  to the right of    3
5     4  to the right of   10
6     4  to the right of    7
7     4  to the right of    8
8     4               of    2
9     5  to the right of    8
10    5   to the left of    4
11    6  to the right of   11
12    7           riding   12
13    7          wearing   10
14    7   to the left of    4
15    7  to the right of   11
16    8               of    7
17    8   to the left of    4
18    8   to the left of    5
19    9  to the right of   12
20    9  to the right of    4
21   10   to the left of    4
22   11   to the left of    7
23   11   to the left of    6
24   12   to the left of    9
25   12      in front of    2